Four people were killed in a remote-controlled bomb blast in Tirah Shalobar area of Bara tehsil on Saturday. Sources in the area told Daily Times that the dead included Sadiq -- a shura member of militant outfit Ansarul Islam (AI) -- and an aide. The men were on their way to Tirah Larbagh when the explosive device -- planted on the side of the road -- went off. The men were injured by the explosion and died later. No group has claimed responsibility for the attack so far.