UK MPs will vote later (Thursday) on whether to seek a Brexit delay from the European Union.
Prime Minister Theresa May says she favours requesting a short extension to the process if her Brexit deal can be agreed by the House of Commons in the coming days.
But she warns a long delay to Article 50 will be necessary if no deal's reached over the next week.
Britain's due to leave the EU on March 29th.
Chancellor Philip Hammond says Theresa May's deal remains the best on the table.
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