Members of Rio de Janeiro's civil police display some seized rifled in Rio de Janeiro, Brazil, June 1, 2017. EFE/Marcelo SayaoRiode Janeiro, Jun 1 (EFE).- Policeseized 60 assault rifles hidden in a cargo container at the Rio de Janeirointernational airport, authorities said Thursday.The shipment of swimming poolheaters dispatched from Miami also contained 45 AK47 rifles, 14 AR15's and oneG3 rifle, all heavy caliber military weapons.In Brazil, the weapons hidden in theshipment are considered war materiel and their use is exclusively reserved forthe armed forces.This is the largest seizure of thiskind of weapons in a single operation in the last 10 years in Rio, where thereare ongoing armed clashes among bands of gunmen vying for control over illegaldrug sales points.Participating in the operationconducted at the airport's cargo terminal, which resulted in the arrests offour people, were agents from the Rio de Janeiro state police's special unitdealing with munitions and explosives.The seizure was made possible thanksto a year-long investigation and information obtained from court-orderedwiretaps of telephone calls.The investigation began with theconfiscation of a weapon used in the murder of a police officer in Sao Gonzalo,a municipality in greater Rio. Police were able to trace the serial number ofthe weapon to determine its origin.With Thursday's seizure, police haveconfiscated 250 assault rifles within the past 5 months in Rio de Janeiro.Assault rifles are the weaponspreferred by drug trafficking gangs that control several of Rio's mainshantytowns, or "favelas," since they enable them to attack thepolice from the positions they occupy on the crests of hills within the slums.Murders in Rio totaled 7,699 in2007, but - with the government's aggressive plan to "pacify" thefavelas and drive out the drug gangs - the number of killings fell to 4,666 in2012, although they resurged to 6,248 last year. EFESource: http://www.worldnewsenespanol.com/ image source: InternetJoseph HincksAt least 22 people have been killedand around 59 injured after a suicide bomb attack at Monday night's ArianaGrande concert at the Manchester Arena, a 21,000 capacity concert venue in theU.K.'s third most populous city.Greater Manchester Police chief constableIan Hopkins said police believe the attacker was a lone wolf who died at thescene, although they are trying to establish if the attacker was part of anetwork. No organization has yet claimed responsibility or involvement in theatrocity, but there are good reasons to fear the operations of terror groups,and self-radicalized, religiously inspired lone wolves in the U.K.1. Approximately 850 Britons havejoined jihadist organizations in Syria and IraqIn August 2014 British PrimeMinister Theresa May, who was at the time Home Secretary, raised the U.K'sterror threat level to 'severe' meaning that an attack was highly likely. Thesevere threat levelone below 'critical', which signifies an imminentattackwas raised in response to warnings of threats posed by British jihadistsreturning from fighting in Syria and Iraq.British intelligence agenciesestimate that approximately 850 people from the U.K. travelled to Syria andIraq to fight for or support jihadist organizations there. As of February thisyear about half had returned, the BBC reports. By March, security officialssaid they were preparing for the return of hundreds more fighters as ISIS losesterritory. The group's stronghold cities of Mosul in Iraq and