At least three people have been killed and 15 others wounded after a suicide bomber targetted a military outpost in Kabul on Wednesday.
It wasn't immediately clear who was behind the blast.
In a statement, Afghanistan's interior ministry spokesman Tariq Aria said the "suicide bomber detonated his explosives among civilians".
The attack comes as violence surged across the country, despite US-led efforts for peace talks between the Taliban militia and the Afghan government.
On Wednesday, another blast in Kabul wounded three civilians.
It comes a day after nine people were killed and seven injured in a Taliban attack on security checkpoints in northern Semangan province.


Saudi Arabia intercepts and destroys drone in Mecca region
Six feared dead in helicopter crash in Indian Himalayan state, media report
Residents leave Russian-occupied Oleshky under truce brokered by Melania Trump
Four killed as Italian helicopter in EU mission in Bosnia crashes
