A suicide truck bomber targeting the convoy of a top Iraqi police officer killed eight people, including the ranking official, authorities said Saturday, in an attack that bore the hallmarks of militants from the Islamic State group.

The late Friday attack happened when the suicide attacker drove his bomb-laden truck into the convoy of police Lt. Gen. Faisal Malik al-Zamel, who was inspecting forces in the town of Beiji north of Baghdad, police said. The blast killed al-Zamel and seven other police officers, while wounding 15 people, hospital officials and police officers said.

The U.S. conducted a series of airstrikes Friday night targeting Islamic State leaders near the northern city of Mosul, according to a senior U.S. defense official speaking on condition of anonymity. It was not known whether Islamic State leader Abu Bakr al-Baghdadi was among those targeted. […]