Four people, including a former NWFP Minister have been killed in a road side bomb blast in Pakistan's restive north-west. Ghani-ur-Rehman who was once Irrigation Minister in North West Frontier Province died when a remote controlled bomb exploded in Bagto village, about 10 kilometres from the town of Hangu. The police chief of Hangu said his body guard, driver and a friend were also killed. Ghani ur Rehman's son, an MP in NWFP blamed the Taliban and other extremists for the attack.