Two soldiers of the NATO-led International Security Assistance Force (ISAF) were killed in southern Afghanistan, an ISAF statement said on Sunday.

The soldiers were killed on Saturday in combat operations, it said.

However, the statement did not identify the nationalities of the killed soldiers. It also did not specify the place of the incidents.

During a telephone interview with Xinhua, an ISAF spokesman refused to give any further information about the killings.

Southern provinces particularly Helmand and Kandahar have been the scene of increasing insurgency over the past year.

Troops serving in southern Afghanistan are mostly from Canada, the United States and Britain.

Over a dozen foreign troops, the majority of whom are Americans, have been killed in Afghanistan this year.

Source: Xinhua