Two bomb blasts killed six people and wounded 29 others in northern Iraq on Sunday, police said. In Baghdad, gunmen killed a senior Interior Ministry official, Brigadier-General Adel Abbas, along with his driver in a drive-by shooting. A suicide truck bomb killed three people and wounded 23 when it exploded at a police checkpoint in the northern city of Kirkuk, Brigadier-General Sarhat Qader, a local police chief, told Reuters. Kirkuk is 250 km (155 miles) north of Baghdad. Further south, a roadside bomb struck a minibus, killing three occupants and wounding six others on a road near the town of Jalawla in volatile Diyala province, police said.