A U.S. over-the-horizon missile strike Sunday destroyed a vehicle carrying Islamic State – Khorasan (ISIS-K) terrorists heading for Kabul airport.

CENTCOM spox Capt. Bill Urban made the confirmation announcement:.

“U.S. military forces conducted a self-defense unmanned over-the-horizon airstrike today on a vehicle in Kabul, eliminating an imminent ISIS-K threat to Hamad Karzai International airport. We are confident we successfully hit the target, ” he said.

AP reports two American military officials, who spoke on condition of anonymity to discuss military operations, called the mission successful and said the vehicle carried multiple bombers.

U.S. Navy Capt. Bill Urban, a spokesman for the American military’s Central Command, called the drone strike an action taken in “self-defense.” He told AP authorities continued “assessing the possibilities of civilian casualties, though we have no indications at this time.”

“We are confident we successfully hit the target,” Urban said. “Significant secondary explosions from the vehicle indicated the presence of a substantial amount of explosive material.”