A security guard in Ghazni, Afghanistan, after another recent bombing.
Photo: AFP
The reason for the explosion in the Gilan district is unclear with officials saying a bomb went off in the back of a rickshaw.
But local residents suggest a piece of unexploded ordnance blew up when children tried to sell it to a vendor.
Taliban militants also say the blast was accidental.
The explosion happened close to a house where a Koran recital ceremony was under way.
A bomb went off after a man driving a motorised rickshaw entered the village and was surrounded by children, Wahidullah Jumazada, a spokesperson for the Ghazni provincial governor, was quoted as saying in the Associated Press.