Kabul, Afghanistan (CNN) -- Coalition troops in southeastern Afghanistan fought off insurgents after a failed assault on a combat outpost on Thursday, NATO's International Security Assistance Force said.
The incident occurred in the Bermel district of Paktika province after a failed attack. The fighting led to the deaths of at least 20 insurgents.
Insurgents fired small arms and used indirect fire directed against Combat Outpost Margah. Soldiers shot back with mortars and small arms fire and called for air support.
The aircraft, from Task Force Viper, killed the insurgents in two separate passes over the area.
On Saturday, Afghan and coalition soldiers fought off attacks on two military bases Saturday in eastern Afghanistan's Khost province.
Elsewhere on Thursday, two U.S. service members were killed in insurgent attacks, one in the east and another in the south, and an air weapons team killed five insurgents setting up a roadside bomb in Ghazni province, ISAF said.
CNN's Joe Sterling contributed to this report