At least six people were killed in a US drone attack in Azam Warsak area of South Waziristan, reported a private TV channel late on Sunday. According to sources, three missiles were fired at a house located in Azam Warsak. After the attack, the drones continued their low flights in the areas which caused more fear among the residents, the sources added. It is pertinent to know that it is first drone attack since Raymond Davis has been arrested for killing two Pakistanis in Lahore last month.