Afghan presidential election candidate Abdullah Abdullah has demanded an immediate halt to vote-counting over allegations of widespread fraud.
Ballot boxes had been stuffed and the whole system was working to benefit his rival Ashraf Ghani, Dr Abdullah said.
He said he had lost trust in election officials, adding: “We have asked our monitors to leave their offices.”
A run-off vote to choose who replaces Hamid Karzai was held on Saturday. Final results are due in July.
Dr Abdullah won most votes in the first round in April, but did not secure an outright majority.
There was no immediate comment from Mr Ghani, a former World Bank economist.
Mr Karzai, who has served two terms as Afghanistan’s first and only president since the Taliban were ousted in 2001, is obliged by law to stand down after the latest election, which would be the country’s first peaceful transfer of power.
He is expected to hand over to his successor in August.
