At least seven people were killed, most of them foreigners, in a suspected US missile strike in S.Waziristan, bringing to 15 the number killed in such attacks in North and South Waziristan on Friday, officials said. "At least seven people were killed, dozens wounded. The majority of those killed were foreigners," said local and security officials employing a term usually used to refer to Al-Qaeda militants. "Two missiles fired by a suspected US drone hit a house in Wana," a senior security official told a foreign news agency, referring to the main town in South Waziristan district and a known hub of Taliban and Al-Qaeda extremists. It was the second suspected US missile attack in northwest Pakistan on Friday, just hours after eight people were killed in North Waziristan. Friday's suspected US missile strikes were the first since US President Barack Obama took office in Washington and came one day after he appointed veteran diplomat Richard Holbrooke special envoy for Afghanistan and Pakistan.