Washington, Aug 26 (DPA) The US Tuesday urged Afghans to exercise patience and restraint as ballots cast in the country's presidential election last week continue to be counted amid allegations of fraud.

Afghanistan's election commission released a partial result Tuesday showing President Hamid Karzai narrowly leading over his chief rival, former foreign minister Abdullah Abdullah, by a 40.6-to-38.7-percent margin.

But that represents only 10 percent of the ballots cast Thursday. A final outcome is not expected to be announced until at least mid-September.

'We all need to be patient, allow the respective authorities to do their jobs thoroughly, and we have to wait for the results to be released,' State Department spokesman Ian Kelly said.