A suicide bomber blew himself up in the Afghan capital of Kabul Monday, senior security officials said, with six people confirmed dead and eight injured.
RELATED:Dozens Wounded as Afghan Parliamentary Elections Get Underway
The attacker on foot detonated his bomb close to a police checkpoint near a school in central Kabul, an official said.
A senior interior ministry official said many police officials could have been injured and ambulances were rushed to the blast site.
Kabul police spokesman Basir Mujahid said he was about 20 m (66 ft) away from the blast near where a demonstration had broken up some 30 minutes before.
"I took four bodies away but there were more on the ground," he said, without giving further details.
No militant group has claimed responsibility for the attack that came as hundreds of demonstrators gathered in Kabul to protest against the government's failure to prevent attacks by Taliban militants in two provinces.
Afghan security forces suffered scores of casualties in heavy fighting at the weekend with Taliban militants in the provinces of Ghazni and Herat, officials have said. At least 37 local policemen were killed in Farah, and 20 members of the Afghan security force were killed in Ghazni's Jaghuri district, reported Al Jazeera.