The 1st Battalion was involved in another controversial shooting incident on 7 September 1972. The Paras raided houses and the headquarters of the Ulster Defence Association (UDA) in the Protestant Shankill area of Belfast. Two Protestant civilians were shot dead and others wounded by the Paras, who claimed they were returning fire at loyalist gunmen. This sparked angry demonstrations by local Protestants, and a unit of the Army's Ulster Defence Regiment (UDR) refused to carry out duties until 1 Para was withdrawn from the Shankill.