The Catholic Church in the Democratic Republic of Congo says its data shows a clear winner in Sunday's presidential election and has called on the electoral commission to publish the true results.
The church deployed some 40,000 electoral observers but is unable to name the winner as Congo's electoral regulations forbid anyone but the electoral commission to announce results.
Observers have reported multiple irregularities as the vast, mineral-rich central African country voted for a successor to departing President Joseph Kabila.
This could be its first peaceful, democratic transfer of power since independence from Belgium in 1960.
The electoral commission's president Corneille Nangaa said it had collected results from about 20 per cent of polling stations.
"We are working hard to announce them as soon as possible," Nangaa said.
The internet remained blocked in the country in an apparent attempt by the government to calm speculation about the results.