The US judge overseeing Donald Trump’s hush-money case in New York City has written a letter to prosecutors and the former president’s defence team about a Facebook post in which a person claims to have known the jury’s decision before it became public.

Justice Juan Merchan’s letter says that on Friday “the court became aware of a comment” on the court’s Facebook page, “now labeled as one week old” from a user named “Michael Anderson”.

“My cousin is a juror and says Trump is getting convicted,” the post says, according to the judge. “Thank you folks for all your hard work!!!”

BBC News has not verified the post, which has been deleted, or the claims allegedly made within it.

The Manhattan District Attorney’s Office and Todd Blanche, Trump’s lead attorney, did not respond to requests for comment.