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
Former foreign secretary David Miliband says he is 'deeply concerned' and refuses to rule out a future run for the Labour leadership.
By May, the supermarket's own brand chocolate products will be sourced ethically, meaning small-scale farmers will get a fair deal.
A group of anarchists have reportedly invaded a building metres away from the Queen's central London residence.