**At least 13 people have been killed in a series of bomb attacks across Iraq, local officials say.**A lorry with explosives blew up at a police station near the central city of Ramadi, killing seven policemen.
In southern Iraq, a bomb planted on a bus killed three people in the province of Qadisiya. In Baghdad, a series of bombs killed at least three people.
Violence in Iraq saw a spike in August, with the highest number of violent deaths for more than a year.
Iraqi government figures showed that 393 civilians were killed that month, along with about 60 police officers and soldiers.