A part-time RUC barracks at Fivemiletown, County Tyrone, in the operational area of the brigade, was destroyed by an IRA van-bomb on 7 May 1992, though the attack was claimed by the South Fermanagh Brigade. In the aftermath of the bombing, on 9 May, a sergeant mayor of the 1st Battalion, the Staffordshire Regiment was shot and killed by a soldier of his company in a blue-on-blue incident at the same spot, while taking part of a security detail around the devastated base. According to a later IRA's statement, the destruction of the security base forced the RUC and the British Army to organised their patrols from nearby RUC barracks at Clogher, allowing the East Tyrone brigade to study their pattern and carry out a deadly ambush in December 1993.