Kabul - A suicide attacker killed at least three people on Saturday by detonating explosives near the office of Afghanistan's election commission in the eastern city of Jalalabad, where dozens of protesters had gathered, an official said.
The protesters had gathered in support of a parliamentary candidate who electoral officials had disqualified over his suspected links with illegal armed groups.
Eight people were also wounded. No group has claimed responsibility for the attack.
Attaullah Khogyani, a spokesman for the provincial governor, said the explosion happened when supporters of the disqualified candidate were trying to shut down the election commission office.
"We had requested the protesters to stop their demonstrations because they could be targeted by militants but they rejected our security message," he said.