British voters head to the polls Thursday for a parliamentary election that opinion polls show is too close to predict.
ການເລືອກຕັ້ງສະພາ ຢູ່ອັງກິດ

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An advertising van with images of Britain's Prime Minister David Cameron and leader of the opposition Labor Party Ed Miliband drives around Parliament Square, central London, May 7, 2015.

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Chelsea Pensioner Wayne Campbell is helped out of a polling station after casting his vote in the general election, London, May 7, 2015.

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Britain's opposition Labor Party leader Ed Miliband leaves after voting with his wife Justine in Doncaster, May 7, 2015.

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Bangladeshi Muslim devotees head to their homes in an over-crowded train after attending the final day of a three-day Islamic congregation on the banks of the River Turag in Tongi, about 20 kilometers (13 miles) north of the capital Dhaka, Bangladesh.