At least four people were killed after a blast ripped through a crowd during Friday prayers at a mosque in Afghanistan's capital Kabul.
The explosion took place inside the Sher Shah Suri Mosque, killing the Imam and three others.
No group immediately claimed responsibility for the blast.
The attack comes at a time when the country is attempting to move towards peace talks to end 18 years of war.
The United States is trying to broker discussions between the Afghan government and the Taliban.
After months of delay since the US signed a troop withdrawal agreement with the Taliban, peace negotiations are expected to start in the coming weeks.
At least 14 killed in explosion at weapons depot in Syria
US hits five Iranian oil tankers after attack on Navy ships
UK gives air traffic provider a week to probe outage that halted flights
Serbia's President Vucic dissolves parliament, calls snap elections
With large crowds attending, Norway lays King Harald to rest
Jordan intercepts 18 Iranian ballistic missiles
Air traffic control issue disrupts flights at major UK airports
At least 73 injured after Houthi rebels attack Saudi civilian and energy facilities
