Multiple missile strikes carried out by suspected US pilotless drone aircraft killed at least 29 people in Pakistan's restive tribal region today, dpa quoted a Pakistani intelligence official as saying. Several more people were injured in the air attacks that took place in at least four villages of the North Waziristan district, a known sanctuary of Taliban and al-Qaeda militants conducting cross- border raids on US-led NATO forces in Afghanistan. "At least eight drones took part in the attack, and they have fired some 18 missiles at three training camps of Taliban, their two vehicles and some bunkers," said a local intelligence official who spoke on condition of anonymity. Taliban militants have fired at the US aircraft from some of these bunkers. One drone was shot down by the militants on January 24. "According to the initial reports we have received from various areas, at least 29 people have been killed while around a dozen more are injured," said the official about Tuesday's attack, adding that the death toll might rise.