A bomb blast in eastern Turkey has killed at least two children and wounded another.

Authorities say the bomb went off Saturday near a garage where the children were playing. It is not clear who planted the bomb.

Earlier, officials said a Kurdish guerrilla and four Turkish soldiers were killed in an overnight clash near the Iraqi border.

They said the clash occurred in a mountainous region in southeastern Sirnak province. Turkey has massed troops along the border as part of an offensive against the banned Kurdistan Workers Party (PKK). Members of the PKK regularly cross from Iraq to attack Turkish forces and other targets.

The PKK has been battling for autonomy for more than two decades in Turkey's southeast. Those clashes are blamed for killing more than 30,000 people since 1984.

Some information for this report was provided by AP and Reuters.