The head of the electoral commission in the Democratic Republic of Congo has summoned presidential candidates due to take part in Sunday's election amid reports that the vote could be postponed. An official news conference is scheduled for 14:00 GMT.

On Wednesday, a spokesman warned that the election could not go ahead if all voter materials were not ready. Thousands of electronic voting machines were destroyed in a fire last week.

The governor of Kinshasa, who is from the governing coalition, has imposed a ban on all political rallies in the capital, citing security concerns. Opposition parties have condemned the move as political interference in the election.