Venezuelan opposition leader Henrique Capriles has accepted defeat and congratulated President Hugo Chavez on his re-election victory.
Capriles told supporters at his campaign headquarters, "I send him my congratulations".
He went on: "I hope a political movement that has been in power for 14 years understands that almost half the country does not agree with it".
Capriles also said he was proud of the large number of voters who turned out to cast their ballots for him.
More top news
Thousands of people have linked hands on Westminster Bridge in a show of solidarity - one week after the terror attack in the capital.
PC Keith Palmer, 48, stabbed by Khalid Masood while on duty in the grounds of the Palace of Westminster last Wednesday.
Engineering firm CH2M won the £170 million contract but have pulled out of phase two of the project over alleged conflicts of interest.