US drone targets 'Islamic State' suicide bombers on way to Kabul Airport: Reports

US officials confirmed a drone strike against a vehicle threatening the Kabul airport.

"US military forces conducted a self-defense unmanned over-the-horizon airstrike today on a vehicle in Kabul, eliminating an imminent ISIS-K threat" to Hamid Karzai International airport, said Bill Urban, a spokesman for US Central Command (CENTCOM).

"Significant secondary explosions from the vehicle indicated the presence of a substantial amount of explosive material," he said, adding there were "no indications at this time" of civilian casualties.

Other reports indicated the vehicle carried multiple suicide bombers.