THE First Minister has called on Westminster's opposition parties to "unite" and plan a no-confidence vote in Boris Johnson's government.

Yesterday the Supreme Court ruled that the PM's move to prorogue Parliament for five weeks ahead of the Brexit deadline was unlawful, meaning MPs can now reconvene in the House of Commons

The court's historic decision has led to questions over what will happen now, with some calling for the Prime Minister to resign or be forced out.

The National:

SNP Westminster leader Ian Blackford said a no-confidence vote needs to be held, but Labour leader Jeremy Corbyn hasn't suggested he feels the same way. A spokesperson for the party refused to comment when asked if the party would support a vote of no-confidence in the Government.

Any MP can propose a no-confidence vote but that doesn't mean it will be debated. Only if the leader of the opposition, currently Corbyn, introduces the motion will the Government have to provide time for the discussion to take place.

Labour have said their priority is preventing the UK crashing out of the EU on October 31. An election could interfere with those plans.

Nicola Sturgeon tweeted: "The Westminster opposition should unite around a plan to trigger the no confidence process to bring Johnson’s government down, ensure the Benn Act is honoured and enable a General Election as quickly as possible. Doing nothing should not be an option."

READ MORE: Ian Blackford pushes for no-confidence vote after court ruling

It's unclear whether a no-confidence vote would successfully pass in the Commons. David Gauke, one of the former Tory MPs expelled from the party after voting against the Government to prevent a No-Deal Brexit earlier this month, has said he would not back such a move.