At least 12 people were killed after three explosions went off near the funeral for a victim of violent clashes between Afghan police and protesters a day earlier, according to Reuters.
A witness, who wished to remain anonymous, said 12 people were dead and 18 wounded.
Afghanistan's Tolo News television said that as many as 18 were killed.
The chief executive of Afghanistan Abdullah Abdullah attended the funeral. His immediate whereabouts remain unconfirmed, the BBC reported.
Saturday's attack is the country's most recent episode of violence in recent days. On Friday, a protest following Wednesday's bomb attack that killed more than 80 people in the city's diplomatic district turned fatal after Afghan authorities had clashed with angry crowds. At least five people were killed.
This story is developing.