Supporters of Venezuela's President Hugo Chavez have been celebrating after winning a referendum to remove term limits for elected officials.
The result will allow Mr Chavez to stand for election again when his second term ends in 2012.
Mr Chavez has been in power for 10 years. He was re-elected in 2006 and remains popular with many Venezuelans because of his spending on health and education.
The president says he needs to stay in power to complete his socialist revolution.
But opponents say the constitutional change will concentrate ever more power in Mr Chavez's hands, allowing him to stay in office indefinitely.
Earlier, people in the capital, Caracas, formed long queues at polling stations as they waited to cast their votes.
An electoral official said more than 11 million voters out of almost 17 million who were eligible took part in Sunday's referendum, which passed off peacefully.