Rebels have killed 12 members of the Iranian security forces in an ambush in the restive southeast, judiciary spokesman Ali Reza Jamshidi said on Tuesday. "They were on a mission and they fell into a rebel ambush. Tragically, the 12 were killed," Jamshidi said, adding that the attack happened in Saravan in Sistan-Baluchestan province near the border with Pakistan. He said those behind the attack had escaped. On Monday, the Fars news agency reported that rebels had attacked a border patrol van on Sunday afternoon killing several policemen and fled back across the border to Pakistan. Iranian police have clashed with rebel groups, in particular the Sunni Muslim Jundullah (Soldiers of God), in the province which also lies on a major narcotics-smuggling route from Afghanistan and Pakistan.