At least three people were killed and five others injured in a US drone attack in Miranshah area of North Waziristan, reported a private TV channel on Wednesday. According to sources, two missiles were fired on a vehicle in Datta Khel, an area adjacent to the Pak-Afghan border, which resulted in the death of three persons on the spot while five others sustained injuries. The vehicle was damaged completely in the attack. It is the 21st drone attack in the tribal belt during September by the US forces operating in Afghanistan.