The Government has lost the Supreme Court case over triggering Article 50.
A panel of 11 Supreme Court justices today has ruled that Theresa May can't start negotiations without Parliamentary consent.
The highest court in the UK rejected an appeal by ministers against a High Court judgment which blocked their decision to begin the divorce from the European Union without a vote in Parliament.
Supreme Court justices ruled by a majority of eight to three that Prime Minister Theresa May cannot lawfully bypass MPs by using royal prerogative to begin negotiating the UK's exit.
Mrs May's timeline has always been to start negotiating with the EU by the end of March. Now, her Government will have to introduce a bill through Parliament to start the process.
Speaking at the Supreme Court, Attorney General Jeremy Wright said that while the Government was disappointed with the ruling, they would respect it.
He said: "The Government will comply with the judgment of the court and do all that is necessary to implement it."
More information to follow.