Venezuela's presidential vote looks set for close finish with Hugo Chavez facing an unprecedented challenge to his socialist rule from 40-year-old state governor and lawyer, Henrique Capriles.
Turnout was high on Sunday and voting was extended beyond the official closing time of 6pm (2230 GMT), at some polling stations where they were long queues.
Sources on both sides predicted a narrow victory based on their own monitoring, while local analysts said it looked too close to call.
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The talks descended into crisis on Friday when Canada's trade minister Chrystia Freeland walked out of meetings.
Police in New York are still investigating what the substance is and whether it could be harmful.
The Sherlock actor made the comment while he received an award for his humanitarian work.