A Lebanese army officer and another soldier were killed on Tuesday when gunmen opened fire on their patrol in Lebanon’s northern Akkar province, security and medical sources said.

A third soldier was wounded in the attack at an army checkpoint near the village of Fneideq, east of the Mediterranean port city of Tripoli.

The army has launched a crackdown in Tripoli after at least 27 people were killed there last month in violence fuelled by sectarian tensions over the civil war in neighboring Syria.