Question: Blast bomb, is a term used in Northern Ireland, for a type of improvised explosive device, a police officer was killed by a blast bomb in Northern Ireland during which ethno-nationalist conflict in Northern Ireland during the late 20th century, by loyalists?

 A police officer was killed by a blast bomb in Northern Ireland during The Troubles by loyalists and in 2001 Loyalist protesters threw a blast bomb at Catholic schoolgirls, some as young as 4 years old, making their way to school in September 2001. Blast bomb is a term used in Northern Ireland for a type of improvised explosive device.  More specifically, these devices are usually a form of homemade grenade, which is thrown at a target.  These devices have been used in a number of public order situations, and in attacks on the Royal Ulster Constabulary, its successor Police Service of Northern Ireland (PSNI) and British Army.  Ordinary fireworks are sometimes used in a similar fashion to blast bombs.  Such devices which are packed with nails are referred to as nail bombs. <SEP> A lob bomb (known officially as an improvised rocket-assisted mortar, improvised rocket-assisted munition, or IRAM) is a rocket-fired improvised explosive device made from a large metal canister (usually a propane gas tank that has been drained of its contents and filled with explosives, scrap metal, and ball bearings), which has been used by insurgents and coalition forces during the Iraq War since late 2007.  The weapon is essentially an airborne version of an improvised explosive device. <SEP>  Also known internationally as the Northern Ireland conflict, it is sometimes described as a "guerrilla war" or a "low-level war".  The conflict began in the late 1960s and it is usually deemed to have ended with the Good Friday Agreement of 1998.  Although the Troubles mainly took place in Northern Ireland, at times the violence spilled over into parts of the Republic of Ireland, England and mainland Europe. The Troubles (Irish: "Na Trioblóidí" ) was an ethno-nationalist conflict in Northern Ireland during the late 20th century. <SEP> The 2004 Grozny stadium bombing occurred on 9 May 2004 when a bomb exploded in the Dynamo stadium in the Chechen capital, Grozny, killing 10 people including the republic's president Akhmad Kadyrov and another 100 people were wounded.  Kadyrov's election was considered by many to be by a fraudulent vote.  The explosion was caused by a bomb planted underneath the concrete floor of the VIP podium and occurred at 10:35am during a parade and concert in Groznyy celebrating the 59th anniversary of the victory of Germany in World War 2.  The blast tore a hole in the section designated for dignitaries.  It was not clear if the explosion was specifically targeting Kadyrov or whether it would have occurred regardless of his presence, as he was not officially scheduled to be at this event.  Khussein Isayev, chairman of the Republic's state council, and Adlan Khasanov, a reported for Reuters, were also killed in the blast.  Col. Gen. Valery Baranov, the commander of the Russian military in the northern Caucasus was gravely wounded.  Although estimates of total casualties varied, at least ten people were killed and around fifty more injured.  The numbers include many civilians and WW2 veterans who were also attending the celebrations.  Officials believe that the blast was detonated by remote control and was intentionally installed below the VIP section.  The bomb may have been planted some time ago during the recent renovations to the stadium.  Preliminary reports suggest that the bomb was equivalent to one ton of TNT.  The location of the bomb made it impossible for existing equipment to detect.  The type of explosive appeared identical to one used to blow up the military parade two years ago in the Dagestani city of Kaspiysk.  Rescue workers prevented two other blasts in the stadium.  They were able to defuse another landmine and an additional explosive device equipped with a timer set to go off 30 minutes after the first explosion.