A Home Office flight deporting convicted offenders to Jamaica has left the UK, despite a last-minute legal challenge.
It is not known how many people were on board or where the plane took off.
The court order on Monday stopped the government deporting some of those due to leave, amid concerns they may not have had access to legal advice.
Chancellor Sajid Javid said no British nationals or anyone protected by the court ruling were on the flight.
All of those being deported are Jamaican nationals who have been convicted of criminal offenses and served prison sentences of 12 months or more.
“It is absolutely right that when they have served their sentence that we send them out of the country,” Mr Javid told BBC Radio 5 Live.
“They are not British nationals, they are not members of the Windrush generation, they are all foreign national offenders.”
The flight had been due to leave for Kingston at 6:30 GMT on Tuesday.
On Tuesday, the Home Office said: “We make no apology for trying to protect the public from serious, violent and persistent foreign national offenders.
“The court ruling does not apply to all of the foreign national offenders due to be deported and we have therefore proceeded with the flight.”
On Monday, the Court of Appeal ruled the government should not deport detainees from Colnbrooke and Harmondsworth detention centers, near Heathrow, after lawyers argued mobile phone signal problems meant some of the detainees could not get legal advice.