bomb in an empty building in Strabane. 25 June 1973: three IRA volunteers (Patrick Carty, Dermot Crowley, and Sean Loughran) were killed when the bomb they were transporting exploded prematurely in their car on Gortin Road near Omagh, County Tyrone. 26 June 1973: the IRA shot dead a civilian (Noorbaz Khan, aged 45) who worked for the British Army as he left Bligh's Lane British Army Base, Derry. 1 July 1973: an IRA sniper shot dead a patrolling British soldier (Reginald Roberts, aged 25) at Bull Ring, Ballymurphy, Belfast. 4 July 1973: a British base in Derry was hit by two rockets and raked with gunfire. Another rocket exploded against the fence of a British base in Belfast, hurting two people. Two British patrols were ambushed elsewhere in Belfast and two people injured in the crossfire. 10 July 1973: the IRA shot dead a former UDR soldier (Isaac Scott, aged 41) outside Tully's Bar, Belleek, near Newtownhamilton, County Armagh. 11 July 1973: a rocket was fired at a British post guarding a gasworks in Derry. It hit an anti-rocket screen but there were no casualties. The IRA claimed responsibility. 17 July 1973: two British soldiers, Christopher Brady (aged 21) and Geoffrey Breakwell (aged 20), were killed by an IRA booby-trap bomb in an electricity junction box at Divis Flats, Belfast. 18 July 1973: a patrolling British soldier (Brian Criddle, aged 34) was wounded by an IRA landmine near Clogher, County Tyrone. He died four days later, on 22 July 1973. 20 July 1973: a patrolling British soldier (Richard Jarman, aged 37) was killed by an IRA booby-trap bomb in Middletown, County Armagh. 20 July 1973: the IRA shot dead an off-duty UDR soldier (Sidney Watt, aged 36) outside his home in Ballintemple, near Meigh, County Armagh. 21 July 1973: two IRA volunteers were killed when the bomb they were transporting exploded prematurely in their car in Newcastle, County Down. 3 August 1973: IRA members, carrying out an armed robbery, shot dead a Catholic civilian, James Farrell (aged 50), who was delivering wages to the British Leyland factory on Cashel Road, Dublin. 11 August 1973: an IRA volunteer died when the bomb he was transporting exploded prematurely in a car at Kilclean, County Donegal. 11 August 1973: an IRA assault team consisting of over 20 volunteers surrounded Crossmaglen RUC barracks. The barracks was hit with rockets, mortars and machine gun fire.