A bomb exploded near a school in a Shiite district of west Kabul on Saturday, killing at least 25 people, many them young students, France24 reports.
Ambulances were rushing to evacuate dozens of wounded from the scene of the blast. The death toll could rise. The blast took place in the Shiite majority neighborhood of Dasht-e-Barchi.
No one immediately claimed responsibility for the attack, and Taliban spokesman Zabihullah Mujahid told reporters in a message that only the Islamic State group could be responsible for such a heinous crime.
The attack comes days after the remaining 2,500 to 3,500 American troops officially began leaving the country.
