Two roadside bombs exploded on the edge of the north Iraq town of Tuz Khurmatu Friday, killing at least 13 people, seven of them children, police and the town’s mayor said.

Two roadside bombs exploded on the edge of the north Iraq town of Tuz Khurmatu Friday, killing at least 13 people, seven of them children, police and the town's mayor said.

One bomb exploded on a road at the entrance to the town and the second was triggered as residents rushed to the scene, the sources said.

The blasts, which took place as children were playing in the road, also wounded 18 people, including a baby, whose parents were both killed, they added.

Tuz Khurmatu is a majority Kurdish town located in a disputed area of northern Iraq, where both the autonomous Kurdish province and the central government in Baghdad vie for power.

Elsewhere in Iraq four soldiers, including a captain, were killed by two roadside bombs in the main northern city of Mosul, police and medics said.

The latest unrest came as an Al-Qaeda front group claimed a wave of bombings across Baghdad on Wednesday, when violence nationwide killed 75 people.

More than 600 people have already been killed so far this month, according to an Agence France Presse tally.