Two suicide bombers attacked a convoy of buses carrying Afghan police trainees, killing at least 30 people, according to reports from The Associated Press and Reuters.
The attack occurred about 12 miles west of Kabul, the AP says, citing the Paghman district governor, Mousa Rahmati. More than two dozen police trainees died, as well as four civilians, the AP says.
The Taliban has claimed responsibility for the bombings.
The attack involved two explosions, Rahmati told the AP.