Camden Council has cancelled its full council meeting this evening so councillors can attend a rally in Trafalgar Square calling on Scotland to remain part of the UK.

Camden’s Labour group, the Conservative opposition and the council’s one Liberal Democrat councillor Flick Rea will attend the rally organised by campaign group Let’s Stay Together.

The council’s sole Green councillor Sian Berry will not be attending the meeting, insisting she is fully behind Scottish National Party (SNP) leader Alex Salmond’s campaign to gain Scottish independence in Thursday’s referendum.

In a joint statement, Camden Council leader Cllr Sarah Hayward and Camden Conservatives leader Cllr Claire-Louise Leyland said: “The prospect of Scottish independence is an unprecedented constitutional upheaval, and we believe, a real threat to our country.

“Taking our lead from David Cameron and Ed Miliband – who cancelled last week’s Prime Minister’s Questions – we have decided that we, and our groups will not attend tonight’s council meeting.

“It will therefore be inquorate and instead both council groups will be jointly marching to Trafalgar Square to participate in the rally to save our Union.

“The business to be taken at tonight’s meeting will be rearranged. We urge Camden residents to join us on the march and show Scotland that Camden and the rest of the United Kingdom believe in our great union and want it to continue with Scotland as a vital part.”

Cllr Berry, of Highgate ward, said: “I think it’s a bit rich to cancel the meeting because we’ve got business to do. It’s really unnecessary, like it’s going to make any difference.

“I’m not going to rally for a no vote, I’m in favour of Scottish independence. I think it will be a great shake-up for the country.

“We are in favour of devolution to the right level and Scotland is clearly at the right level for devolution.

“It would give us an opportunity to re-write our constitution.”