Hundreds of Afghans have marched through the northern city of Mazar-e-Sharif to protest the killing of a candidate in the country's recent legislative elections.

The protesters were demanding the arrest and trial of those responsible.

National Assembly candidate Mohammad Ashraf Ramazan and his bodyguard were gunned down last week by unidentified attackers. Although the Taleban claimed responsibility for the killings, the protesters blamed the local administration.

Mr. Ramazan was the first candidate killed since the September 18 parliamentary polls.

Meanwhile, the chairman of the joint U.N.-Afghan election body says ballot boxes from about four percent of 26,000 polling stations were being checked for reported irregularities.

But Peter Erben said the cases of fraud are localized rather than widespread, and will not affect the overall integrity of the landmark vote.

Some information for this report provided by Reuters and AFP.