The president of Venezuela's electoral council says voting stations will remain open where there are voters who have not cast ballots.
The official, Tibisay Lucena, doesn't say how many voting stations still have voters waiting. Nor does she say for how long the polling stations might remain open.
President Hugo Chavez has faced the stiffest challenge of his political life from challenger Henrique Capriles in Sunday's election.
Capriles has complained via Twitter that electoral authorities should close voting stations because most lack lines.
Dozens of red-shirted Chavez loyalists on motorcycles are cruising downtown Caracas, and a Capriles campaign spokesman is calling for them to be banned from the streets.