Nine people were killed when a suicide bomber posing as a shepherd attacked police north of Baghdad on Tuesday and at least six civilians died in a spate of shootings by U.S. soldiers, security officials said.

Six people were killed when a suicide bomber attacked provincial police headquarters in Baquba north of Baghdad on Tuesday, police said.

U.S. troops killed five Iraqi civilians, including a child, in two separate shootings in the past two days, the U.S. military said on Tuesday.On Monday, U.S. troops targeting al Qaeda fighters in Baiji, 180 km (110 miles)