A paramilitary soldier stands in position outside Jinnah International Airport in Karachi June 9, 2014. [Photo/Agencies]

Major General Asim Bajwa, spokesperson for Inter Services Public relations, the administrative military organization within the Pakistan Defense Forces, tweeted Monday morning that the 10 militants were killed one after another in the retaliatory attack by security forces.

He said that in the joint operation, the Pakistan army and Paramilitary troops Rangers were at front line, with ASF taking positions while the police providing an outer cordon.

Bajwa said that the troops had cleared the area and would return the airport to the Civil Aviation Authority by midday after the precautionary sweep after day light.

"The Area cleared. No damage to aircraft, fire visible in pics was not plane but a building, now extinguished. All vital assets intact," Bajwa tweeted.

Earlier, local media reported that the militants set two airplanes including cargo plane of a foreign company on fire and partially damaged four others by firing at them.

In a footage taken from quite a distance a plane was seen parked near huge flames of fire.