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 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. Royal motto: Quis separabit (Latin: Who will separate?) Northern Irelands location within the UK Official languages English, Irish, Ulster Scots Capital and largest city Belfast First Minister Office suspended Area  - Total Ranked 4th 13,843 km² Population  - Total (2001)  - Density Ranked 4th 1,685,267 122/km² NUTS 1... An Improvised Explosive Device (IED) is a formal name for explosive devices as used in unconventional warfare by terrorists, guerrillas or commando forces in a theater of operations. ... The word grenade can mean:- The well-known hand grenade commonly used by soldiers. ... The Police Service of Northern Ireland (PSNI) is the police service that covers Northern Ireland. ... The British Army is the land armed forces branch of the British Armed Forces. ... A nail bomb is an anti-personnel explosive device packed with nails to increase its destructive power. ...

A similar type of device, also common in Northern Ireland, is the pipe bomb. A pipe bomb is a simple type of improvised explosive device favored by criminals, a piece of pipe filled with an explosive material. ...