Officials: Iran behind drone attack on US base in Syria | Al Jazeera

United States officials believe Iran was behind a drone attack last week at a military outpost at al-Tanf in southern Syria where American troops are based.

Officials said Monday the US believes that Iran provided resources and encouraged the attack, but that the drones were not launched from Iran, The Associated Press news service reported.

The drones were Iranian, and Iran appears to have facilitated their use, officials said, speaking on condition of anonymity to discuss details that have not been made public.

Officials said they believe the attacks involved as many as five drones laden with explosive charges, and that they hit both the US side of al-Tanf garrison and the side where Syrian opposition forces reside.