The gunships shelled militant positions at Kole Bargan area of Orakzai tribal agency, official sources said.
Besides killing four militants, the air strikes destroyed two Taliban positions, they said.
Security forces have also given local residents three days to vacate Dabori area, where troops are set to launch an operation to flush out the Taliban, the sources said.
Pakistani security forces claim to have killed over 400 Taliban militants since an offensive was launched in March to flush the terrorists out of the region.
The figure cannot be independently confirmed as journalists are barred from reporting from the conflict zone.
Peshawar: Pakistani helicopter gunships on Sunday pounded Taliban hideouts in the volatile Orakzai tribal region in the country's northwest, killing at least four militants.
First Published: Sunday, May 02, 2010, 14:58