Background: Brexit - Revoke Article 50 petition crashes Parliament websitepublished at 12:29 Greenwich Mean Time 21 March 2019
A petition calling on Theresa May to cancel Brexit by revoking Article 50 has attracted more than half a million signatures.
Parliament's petitions website crashed on Thursday morning because of the high volume of traffic.
It comes as the prime minister heads to Brussels to ask the EU for a delay to next Friday's Brexit date.
Foreign Secretary Jeremy Hunt told BBC Radio 4's Today revoking Article 50 was possible but "highly unlikely".
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