A witness named Amjad said men were killed as their wives and children watched. "They are executing them one by one," Amjad said by telephone. "They are carrying one of them on their shoulders, putting him on a sand dune, turning him around and shooting." Fatah officials said Hamas shot and killed seven of its fighters outside the Preventive Security building. A doctor at Shifa Hospital said he examined two bodies that had been shot in the head at close range.