Image copyright Getty Images 
 
 A man has been killed as at least 1,500 migrants tried to enter the Channel Tunnel in Calais during Tuesday night, French police have said. 
 
 Eurotunnel, which says incursions are now a nightly occurrence, said migrants had been removed from the site. It advised freight services to consider alternative transport for Wednesday. 
 
 Sections of the M20 in Kent are closed in both directions for Operation Stack. 
 
 It comes as the UK government comes under pressure to combat the crisis. 
 
 Speaking after a meeting of the government's emergency Cobra committee, Home Secretary Theresa May said the UK was pressing for the rapid installation of 1.2 miles of new security fencing which it has pledged to pay for at Coquelles, near the tunnel entrance. 
 
 Mrs May added there were some migrants "particularly trying to get into the Eurotunnel and on to the trains before that security fencing is going up". 
 
 France's interior minister said 120 police officers were being sent to Calais to reinforce security at the site. 
 
 'Urgent work' 
 
 The man who died is described as Sudanese, aged between 25 and 30. 
 
 French police said he was probably crushed by a lorry which was exiting one of the shuttles that transport vehicles through the tunnel. 
 
 He is the ninth person to die trying to access the tunnel since June. 
 
 Travel latest 
 
 M20 closed London-bound from J9 to J8 and closed coast-bound from J8 to J11 
 
 Eurotunnel says its passenger services are running, with a delay of two hours on the UK side and one hour on the French side 
 
 Freight services face a one-hour delay before check-in on the UK side; with an estimated more than six-hour wait to check-in in France 
 
 P&O ferries and DFDS Seaways say all their services are operating to schedule between Dover and Calais 
 
 BBC travel information 
 
 Calais crisis: Advice for travellers 
 
 Eurotunnel said some 2,000 migrants had tried to get into the terminal on Monday. 
 
 A spokesman said it was an issue for the government to "sort out", adding. "We need them to stop the migrant flow from Calais but it appears to be too much for them to handle." 
 
 Media playback is unsupported on your device Media caption Home Secretary Theresa May: ''Urgent work'' will be carried out to stop migrants boarding trains at Calais 
 
 Mrs May said some migrants had reached Britain through the Channel Tunnel, but did not say how many had arrived. 
 
 Speaking after Wednesday's Cobra meeting, she said: "Crucially what we are looking at now is improving security at the railhead at Coquelles, so we can ensure people are not trying to come through the tunnel. 
 
 "That means some urgent work in government but also with Eurotunnel, and Eurotunnel has a role to play here in the measures they themselves put in place to protect their trains." 
 
 The Home Office has pledged to spend £7m on 1.2 miles of fencing there. 
 
 'Drunk with tiredness' 
 
 Lorry driver Sean Swan took 23 hours to travel from the M20 to Calais on Tuesday and said he only got through because he was carrying live fish. 
 
 "I was given a police escort from Junction 8 all the way to Dover, even after making the officer aware that it was now illegal for me to drive. 
 
 "We bypassed thousands of stranded lorries. At one stage I felt drunk with tiredness at the wheel of a 44 tonne machine." 
 
 He said in the past month, migrants had managed to board the train on every journey he made from France to Britain. 
 
 Drivers found with migrants hiding on their vehicles can be fined but many are afraid to challenge them. 
 
 "They are jemmying the padlocks off, with hammers, crowbars and Stanley knives. 
 
 "On one side you risk your life and on the other you risk your livelihood." 
 
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 'Get a grip' 
 
 Speaking from Singapore, PM David Cameron said: "I have every sympathy with holidaymakers who are finding access to Calais difficult because of the disturbances there and we will do everything we can to work with the French to bring these things to a conclusion. 
 
 "There's no point trying to point fingers of blame - it's about working with the French, putting in place these additional security measures, adding in the investment where that's needed. Britain will always come forward with that." 
 
 Media playback is unsupported on your device Media caption Peter Whittlesea, in Calais, explains the route many migrants take to gain access to the railway tracks 
 
 But Labour's interim leader, Harriet Harman, urged the government to "get a grip" as the Calais situation caused a "major problem" for Kent. 
 
 She said diplomacy with the French had not worked, adding: "What the government should be doing is getting the French to sort out the people who are all massed at Calais to discover - are these people genuine refugees who the French should give asylum to, or are they people who the French need to be deporting?" 
 
 Meanwhile, Kent Police has reintroduced Operation Stack, leading to long delays for lorries on sections of the M20 near the Channel Tunnel. 
 
 Richard Burnett, chief executive of the Road Haulage Association, which represents lorry drivers, repeated a call for the French military to "contain, segregate and control the situation". 
 
 And UKIP leader Nigel Farage said the port of Calais had become "virtually lawless", fearing that "unless something radical is done it is only a matter of time before a British holidaymaker or lorry driver dies". 
 
 He told the BBC's Victoria Derbyshire programme he was surprised the French had not brought in their army to help with the crisis. 
 
 Image copyright Getty Images Image caption Eurotunnel has called on the government to stop the migrant flow from Calais 
 
 Image copyright Getty Images Image caption An official count in July found about 3,000 migrants were camping in Calais, AFP reported 
 
 Media playback is unsupported on your device Media caption Many waited for darkness before trying to access the tunnel entrance on Tuesday night 
 
 The home secretary held talks on the migrant issue with French Interior Minister Bernard Cazeneuve on Tuesday, saying the two governments were working "in close collaboration and co-operation". 
 
 An official count at the beginning of July found about 3,000 migrants - mainly from Ethiopia, Eritrea, Sudan and Afghanistan - were camping in Calais and trying to get across the Channel, AFP reported. ||||| (CNN) In just the past two days, 3,500 migrants have tried to cross the Channel Tunnel between France and the United Kingdom -- a dangerous breach that has paralyzed traffic and resulted in at least one death, officials said. 
 
 The tunnel, also known as the Chunnel, runs 50 kilometers (31 miles) from a point near Calais, in northern France, to Folkestone, in southeastern England. 
 
 On Tuesday night, 1,500 migrants tried to enter the Channel Tunnel, operator Eurotunnel said. It said its teams found a corpse, which French state radio said is the body of a Sudanese migrant. 
 
 And overnight Monday, 2,000 migrants tried to enter the Channel Tunnel through the French terminal near Calais, Eurotunnel said. 
 
 Some of those migrants were injured, Eurotunnel France spokeswoman Cecile Carreras said. French authorities and Eurotunnel personnel were able to enter the tunnel and intervene. 
 
 Cutting through fences 
 
 Calais police Officer Gilles Debove told French state radio that "2,000 migrants didn't arrive just like that." 
 
 "We can't possibly imagine it's a wave of 2,000 migrants," Debove said. "Let us be clear: Those are 2,000 intrusions on the site. To compare, about three weeks ago, it was around 500." 
 
 Debove said about 1,000 migrants had been waiting around the Eurotunnel site and had repeatedly cut fences. 
 
 Eight recent deaths 
 
 Calais has long been a gathering place for migrants trying to find a way into the UK. This year alone, Eurotunnel has intercepted 37,000 migrants, the operator said. 
 
 And the attempted journey has been deadly. 
 
 Last Friday, a 23-year-old Eritrean woman died after being hit by a car as she was trying to cross into the UK, said Gaetan Genel, a spokesman for France's Nord Pas de Calais region. 
 
 The woman was the eighth migrant to die since June 1, Genel said. 
 
 Since her death, Pas de Calais administrator Fabienne Buccio announced new safety measures involving the Chunnel. 
 
 "The authorities will now work with migrants to inform them about the potential dangers they could face on the A16," Genel said, referring to the road leading to the tunnel. 
 
 "They need to be aware that they are putting their lives in danger." 
 
 Genel said Buccio also asked authorities to continue installing barriers and to add lighting, which would allow drivers to see when migrants try to jump onto their trucks at night. 
 
 An international problem 
 
 British Home Secretary Theresa May said France and Great Britain agreed to work together "to return migrants, particularly to West Africa, to ensure that people see that making this journey does not lead to them coming to Europe and being able to settle in Europe." 
 
 She said both countries have invested heavily in tunnel security. 
 
 "In Calais, the French government has already been pushing in for extra resources and extra police resources," May said. "And the UK government will be pushing up to 17 million pounds ($26.5 million) more to ensure the security of the Eurotunnel." 
 
 British Prime Minister David Cameron said such security measures include added fencing. He also acknowledged the massive disruption in traffic because of the flood of migrants. 
 
 "I have every sympathy with holiday makers who are finding access to Calais difficult because of the disturbances there," he said Wednesday. "We will do everything that we can to work with the French and bring these things to a conclusion." 
 
 But French Interior Minister Bernard Cazeneuve said the problem extends beyond France and Britain. 
 
 "If we want to solve this problem in Calais, if we want to prevent the networks of smugglers from driving vulnerable men, women and kids to Calais, we need to work on this problem in its origin," he said. 
 
 "We need to work on this from the migrants' countries of origin and follow their path which leads to the European territory."
– Some 1,500 migrants tried to storm the tunnel that links Britain and France last night, and French police say one of them, a Sudanese man, was killed by a truck, the BBC reports. The latest attempt follows a Monday night attempt by 2,000 people to storm the area around the tunnel before they were repelled by police. A Eurotunnel rep tells CNN that some of the migrants were injured in the Monday night incident, and mass attempts to storm the area in Calais, northern France, are becoming an almost nightly occurrence. Calais is a key port for sea and land crossings to Britain. In recent months, thousands of migrants from Eritrea, Sudan, and beyond have camped out around the city. Some try to sneak across the English Channel by getting on trucks and freight trains. The encampments have soured relations between Britain and France, which blame each other for failing to cope with the crisis. The BBC reports that the man killed last night was the ninth person killed trying to enter the tunnel area since June.