At least four suspected militants were killed in a US drone strike in Wana, a town of South Waziristan, on Thursday morning.
According to security sources, the US drone targeted a house in Azam Warsak area, 20 kilometers off Wana, killing at least four people.
Local people said US drones were hovering in the area for hours, stirring panic in among the denizens and signaling air offensive.
