More than 4 million sign Brexit petition to revoke article 50

Online petition sparks conspiracy theories on both sides of the debate

An online petition calling for the UK government to revoke article 50 and remain in the EU has reached 4m signatures.

The petition, which was started in late February by "frustrated remainer" Margaret Georgiadou, has gained momentum very quickly, and has now reached just over 4m supporters, adding 2.5m signatures in less than 24 hours.