Both sides in an election to choose a successor to Venezuela's late leader Hugo Chavez expressed confidence of victory after Sunday's vote, raising fears that the official result could be contested.
Acting President Nicolas Maduro led all polls before the vote, buoyed by Chavez's blessing before he died from cancer last month and vowing to continue the former president's self-styled socialist revolution.
But Maduro's rival, state governor Henrique Capriles, appeared to close the gap in the last days of the short campaign.
- Read: Fears over Venezuela vote.
More top news
Justin Bieber is being sued for more than £50,000 after allegedly smashing the mobile phone of a man who was filming him.
President Barack Obama and First Lady Michelle Obama have celebrated Star Wars Day by getting down with R2-D2 and some storm troopers.
Police are appealing for information about two sisters aged 12 and five who went missing three days ago.