Iraqi officials say a suicide attack west of the capital Baghdad has killed eight people and wounded 14.
A police officer said that the bomber blew himself up on Tuesday night among a group of anti-militant Sunni militiamen outside the city of Ramadi.
The militiamen were patrolling a camp for families who had fled the months-long fighting in Ramadi between militants from an al-Qaida spin-off group and government forces allied with Sunni tribal fighters.
It was unclear if the bomber had come from the camp or followed the militiamen into it. The police officer says two militiamen, three guards and three women died in the explosion.