A blast that tore through a Kabul mosque during evening prayers on Wednesday killed 21 people, Kabul police said on Thursday.
Police spokesperson Khalid Zadran said that another 33 people had been injured in the blast.
Witnesses had told Reuters the powerful explosion was heard in a northern Kabul neighbourhood, shattering windows in nearby buildings.
There was no immediate claim of responsibility for the blast and authorities did not publicly assign blame.
