Afghan and international forces said on Thursday they had killed around 30 militants in Afghanistan, 22 of them in NATO air strikes after a patrol was attacked near the Pakistan border.
A "large number of insurgents" attacked a NATO patrol in eastern Khost province yesterday, the alliance's International Security Assistance Force (ISAF) said in a statement.
"The ISAF patrol fired back in response and called in attack helicopters and close air support," it said.
"ISAF service-members from a nearby operating base assessed the scene, confirming a total of 22 insurgents killed in the remote area," it said.
An ISAF official told AFP the attack had taken place in the province's Bak district.
The Afghan defence ministry said separately that police posts in neighbouring Tere Zayi district had come under attack late on Wednesday, sparking heavy fighting that lasted into on Thursday morning.
"Eight enemies were killed and another two wounded were left on the battlefield," it said.
It was not immediately clear if ISAF and the Afghan ministry were referring to the same incident.
The US-led coalition said separately that its forces had killed six Taliban militants in an operation in the southern province of Zabul.
"Coalition forces killed six armed Taliban militants and detained one suspected militant during an operation to disrupt the Taliban's foreign fighter and roadside bomb network in Zabul province," it said in a statement.