NATO forces in separate operations in Afghanistan killed more than 40 Taliban insurgents over the past two days, the NATO-led International Security Assistance Force (ISAF) on Thursday said.

"International Security Assistance Force killed more than 30 insurgents in an ongoing offensive operation in Reg-e Khan Neshin district, Helmand province during the past two days." ISAF said in a statement released here.

The ongoing operation is focused on disrupting the insurgent's ability to traffic narcotics and weapons, as well as destroy Improvised Explosive Device (IED) making facilities in the province, some 555 km south of capital city of Kabul, it said.

According to the statement coalition forces killed more than 10 suspected Taliban insurgents in mountainous Kunar province, some 185 km east of Kabul.

"Coalition forces killed more than 10 suspected insurgents in Shigal wa Sheltan district, Kunar province, yesterday," the statement reads.

Coalition forces observed an unknown number of suspected insurgents with weapons near a combat outpost and declared an imminent threat.

After gaining positive identification, coalition forces engaged the enemy positions, killing more than 10 suspected insurgents, according to the statement.

During the operations, there have been no reports of injuries to civilians in the area or damages to property, it said.

Taliban militants fighting Afghan and NATO forces have yet to make comments.

More than 140,000-strong NATO troops, nearly 100,000 of them Americans, have been stationed in Afghanistan.