On 9 April 1994, after a three-day IRA ceasefire, a Mark-15 mortar was launched at midday at the British Army permanent checkpoint in Aughnacloy. The heavy projectile landed at the rear of the small base without exploding, forcing the evacuation of Coronation Park housing state. The East Tyrone Brigade reported that they took over the area between the checkpoint and the border, set a roadblock, drove a tractor carrying the mortar to the firing point and issued a 30-minute warning. On 27 May 1994, the British Army checkpoint at Aughnacloy was the target of an attack once again, when the compound came under automatic fire from an improvised tactical vehicle consisting of a van mounting a concealed heavy machine gun. British troops manning the outpost returned fire. The armed vehicle crossed the border after the engagement.