Suicide bombers have killed at least six people at the funeral in Kabul of a man who died during a protest on Friday, Afghan officials say.
Dozens were wounded in the blasts, which hit the funeral of one of five people killed when police fired on a protest against deteriorating security.
The chief executive of Afghanistan, Abdullah Abdullah, survived the attack.
The latest violence comes as much of Kabul is in lockdown and amid popular anger at the government.
Officials had warned people to stay away from demonstrations, saying they might be attacked by militants. Checkpoints have been set up in central Kabul, and armoured vehicles are patrolling the streets.