KABUL, Afghanistan - Twenty militants and one policeman are dead after three separate clashes in southern Afghanistan.

Officials say militants battled Afghan and U.S.-led coalition troops.

The provincial police chief of Ghazni province says militants attacked at least three police checkpoints in Ghazni Tuesday, and ensuing gunbattles left 13 militants and one officer dead.

A spokesman for Zabul province's governor says Afghan and U.S.-led coalition forces there clashed with suspected Taliban militants Tuesday in Shahjoy district, leaving seven militants dead and six others wounded.