The SNP and other opposition parties have tabled a vote of no confidence in the UK Government.
It comes after Labour leader Jeremy Corbyn demanded a confidence vote on the Prime Minister after she confirmed a vote on her Brexit deal would not take place until after Christmas.
That move was branded a “stunt” by the SNP, who have joined with the Liberal Democrats, Plaid Cymru and the Greens to table a motion of no confidence in May’s government following a meeting on Tuesday evening.
They said the decision follows constant pressure on Mr Corbyn to table a motion of no confidence in the UK Government under the Fixed Term Parliaments Act, which he has not done.
SNP Westminster leader Ian Blackford MP met with Liberal Democrat leader Vince Cable, Plaid Cymru MP Liz Saville Roberts and Green MP Caroline Lucas on Tuesday and they took a joint decision to put forward the Commons vote in the names of the opposition leaders.
Mr Blackford said: “Opposition leaders have taken the decision to table a vote of no confidence in the UK government under the Fixed Term Parliaments Act – something Jeremy Corbyn has failed to do.
“Labour has failed to hold the UK government to account over their shambolic Brexit negotiations. Their motion of no confidence in the Prime Minister on Monday was a gimmick – we attempted to strengthen it with our own amendment and it’s regrettable it was not offered time for debate in Parliament.”
He continued: “By tabling our motion on Tuesday evening, we hope to be afforded time by the UK government to debate it before Parliament closes for the Christmas recess.
“It is clear the Prime Minister’s tactic has been to run down the clock and deprive Parliament of any alternative to her deal.
“Jeremy Corbyn seems happy to let her – presumably to avoid having to make a decision on a second EU referendum. This is not acceptable and people deserve better.
“We want this motion to succeed but if it doesn’t, Labour’s only excuse for not backing a second referendum will be removed. We can then all get on with building a majority for that vote.”
It is understood the government only has to give time to motions tabled in the name of the Leader of the Opposition.
Plaid Cymru Westminster leader Ms Saville Roberts added: “Labour may be the ‘official’ opposition, but this is what real opposition looks like.”