A car bomb has killed seven policemen in Saddam Hussein’s hometown of Tikrit. Eight other officers were wounded in the blast. Meanwhile, gunmen shot dead eight people in a minibus south of Baghdad. Officials said it was not clear who was in the bus. In the southern city of Basra, suicide bombers attacked the building housing the Interior Ministry and a police station, wounding 5 police officers. At dawn on Tuesday, an explosion tore through a gas pipeline between the northern city of Kirkuk and a refinery near Tikrit. An official with the Northern Oil Company said the pipeline was destroyed and would take days to repair.