Fiji went to the polls on Wednesday and a final result is expected tomorrow.
Four opposition parties say they have been prevented from verifying results as data from polling stations is entered at the National Results Centre in Suva.
They said election procedures had been breached and they want the authorities to stop announcing official results.
They also say the sporadic announcements are creating anxiety among Fijians.
The Supervisor of Elections said the claims are fake, shameful and the tallying is all above board.
But he said they have suspended announcements to give parties time to catch up.
Provisional results indicate a win for Frank Bainimarama's ruling FijiFirst party.
On Saturday evening he was holding just over half the vote from 80 percent of polling stations.