Jihadists have killed 33 people in Iraq, including 20 at a suicide bombing at a market place, Iraqi police say.

Islamic State militants claimed responsibility for two explosions near Baquba in the eastern Diyala province on Monday.

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The worst of the attacks took place in an area called Huwaydir where the marketplace blasts killed 20 and left 45 wounded.

“A suicide bomber driving a booby-trapped vehicle blew himself up in the middle of the central market area in Huwaydir,” a police lieutenant colonel said.

A suicide bomber killed ten and wounded as many more after detonating a car bomb near a checkpoint in Kanaan.

Another improvised explosive device also went off in a neighbourhood between Baquba and Huwaydir, killing three and wounding four, police said.

It’s not confirmed if the third attack was by IS militants or how many of the victims from the bombings were civilians.

The wave of bombings come only weeks after a massive suicide attack left at least 120 dead in Khan Bani Saad, which is also in Diyala.

– with AAP