Scotland could join the Brexit court battle to make sure Theresa May does not win back the power to trigger Article 50, Nicola Sturgeon has said.
The Scottish First Minister says that Holyrood could join businesswoman Gina Miller and hairdresser Deir Dos Santos as "participants in that case" when it goes to the British Supreme Court in early December.
A court ruling on Thursday morning handed victory to campaigners who said the British Prime Minister did not have the right to set in motion the official notice of divorce from the European Union without consulting parliament.
Ms Sturgeon said: "We'll be looking at the judgment very carefully and yes we will actively consider whether or not there is a case for the Scottish government to become participants in that case."
She said the ruling was "hugely significant and underlines the chaos and confusion at the heart of the UK government".
She added: "We should remember that their refusal to allow a vote in the House of Commons is not because of some matter of high constitutional principle, it is because they don't have a coherent position and they know that if they take their case to the (chamber) that will be exposed."
She said that the 54 SNP MPs would "certainly not vote for anything that undermines the will or the interests of the Scottish people".
UK Labour leader Jeremy Corbyn said the party respected the decision made in the referendum but made clear that MPs would want to see Mrs May's negotiating terms first.
He said: "This ruling underlines the need for the government to bring its negotiating terms to Parliament without delay.
"Labour respects the decision of the British people to leave the European Union. But there must be transparency and accountability to parliament on the terms of Brexit."
At the end of a recent Brexit summit meeting with Mrs May, Ms Sturgeon said she was no clearer on the strategy for leaving the EU than she was at the beginning.
She said there had been a "frank exchange" at the meeting but she had found it "deeply frustrating".
Ms Sturgeon said: "I don't know any more now about the UK government's approach to the negotiations than before I went into the meeting."
