Lawyers for former US President Donald Trump have asked the judge overseeing his hush-money case in New York to lift his gag order now that the trial has concluded.

The letter sent to Judge Juan Merchan on Monday argues that the court's concerns "do not justify continued restrictions" on Trump's free speech rights.

On Thursday, Trump was found guilty of 34 counts of falsifying business records involving a payment to keep a porn star who says she had sex with him quiet.

The gag order was issued on 26 March, banning Trump from speaking publicly about witnesses, jurors, prosecutors, court staff and their family members.

Trump lawyers Todd Blanche and Emil Bove wrote in the letter to the judge that Trump should enjoy “unrestrained campaign advocacy”.

They say his case is "made even stronger" after his political opponent, US President Joe Biden, spoke publicly about the case.

They add that Trump is currently unable to defend himself against "continued public attacks" by witnesses for the prosecution, like his ex-lawyer Michael Cohen and the porn star, Stormy Daniels.

The letter also cites Trump's participation in the first presidential debate against Mr Biden, scheduled for 27 June.

Trump will be sentenced by Judge Merchan on 11 July, four days before he is officially declared the Republican Party's presidentially nominee.

His team has made repeated prior requests to lift the gag order, but those have been denied by the judge.

During the trial Judge Merchan fined Trump $10,000 (£7,800) for violating the gag order, and threatened to jail him if he continued.

"The last thing I want to consider is jail," Judge Merchan told him in court. "You are [the] former president and possibly the next president."

"Your continued willful violation of the court’s order…constitutes a direct attack…and will not be allowed to continue," he said.

The order still permits Trump to criticise District Attorney Alvin Bragg, who brought the case against Trump, and Judge Merchan.

Prosecutors had argued that the gag order was needed to “protect the integrity of this criminal proceeding and avoid prejudice to the jury".

On Friday, Trump told reporters that he believed the gag order should have expired at the conclusion of the trial, and that his lawyers were seeking clarity from Judge Merchan.

"I'm under a gag order, nasty gag order," he said at Trump Tower after the verdict.

Referring to Cohen, a star witness for the prosecution, he said: "I'm not allowed to use his name because of the gag order."

Also on Friday, Mr Biden referred to Trump as a "convicted felon", telling reporters at the White House, "it's literally driving him crazy".