At least 10 people were killed and one was injured in a U.S. drone strike early Saturday morning in Pakistan's northwest tribal area of North Waziristan, reported local Urdu TV channel Express.

According to local media reports, two missiles were fired by U. S. drones at a house suspected of being a militants' hideout in the Darai Nashtar area of North Waziristan which borders Afghanistan.

Four U.S. drones were seen flying over the area following the attack. Rescue work was delayed due to fear of further strikes by the U.S. drones, said local media.

Identities of the victims in the attack are not known immediately.

Saturday's U.S. drone strike is the 12th of its kind in Pakistan since this year. Up to date, at least 93 people have reportedly been killed in such strikes in 2012.