2 US Troops Killed in Drone Friendly Fire Military probing Afghanistan deaths By Rob Quinn, Newser Staff Posted Apr 12, 2011 5:38 AM CDT 1 comment Comments A US Predator drone flies over the moon above Kandahar Air Field, southern Afghanistan. (AP Photo/Kirsty Wigglesworth, File) (Newser) – Two American servicemen were killed in Afghanistan last week in what is believed to be the first case of friendly fire deaths involving a Predator drone. The pair were killed by a Hellfire missile after Marines under fire called in a strike, military officials tell NBC. The Marines were viewing video from the drone and apparently mistook reinforcements moving toward them on foot for the enemy, officials say. The US military is investigating the incident.