BBC:

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".

Commons leader Andrea Leadsom said she had been made aware of technical problems with the site - but she dismissed the petition as not being on the same scale as the pro-Brexit vote in the 2016 referendum.

[Link to petition website for UK citizens here]

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