Supporters of the online activist group have clashed with police after they were forcibly ejected from a McDonalds in Central London.
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Oliver Healey said he set up the page before the referendum and it has now been "hijacked" by Remain backers.
Another unsettled day ahead for most.
Deputy Labour leader Tom Watson was partying at Glastonbury until the early hours, as the party's shadow cabinet began descending into chaos