AlHijjah 25, 1432, Nov 21, 2011, SPA - At least 10 troops were killed when gunmen ambushed their convoy in south-western Pakistan, security officials said on Monday. The incident took place late Sunday in Lora Lae district, in the province of Baluchistan, according to a report of the German Press Agency "DPA". The troops of the paramilitary Frontier Corps were on a patrol when their convoy was attacked, a security official said. "The attackers were armed with assault rifles and rocket-propelled grenades," he said. The patrol engaged the attackers, and the clash was ongoing, the official said late Monday.