In the deadliest single incident on Tuesday, May 28 five people were killed and 25 wounded by a bomb on a bus in the Sadr City suburb of the capital Baghdad, BBC News said.

On Monday, 66 people were killed by car bombs in Baghdad targeting Shia-majority areas of the city, including on the edge of Sadr City.

The recent upsurge in violence comes amid rising sectarian and political tension.

On Tuesday at least three policemen were killed in the northern city of Mosul in clashes between gunmen and police. A bombing near the city killed another policeman.

In the town of Tarmiya, two people died in a suicide bombing, and two people were killed by gunmen near the city of Tikrit.