Former US President Donald Trump says he is expecting to be arrested on Tuesday in a case about alleged hush money paid to an ex-porn star.

Mr Trump called on his supporters to protest against such a move in a post on his Truth Social platform.

One of Mr Trump’s lawyers said his claim was based on media reports that he could be indicted next week.

If Mr Trump is indicted, it would be the first criminal case ever brought against a former US president.

It would also have serious ramifications for his campaign to become the Republican nominee for president in the 2024 presidential election.

For five years, prosecutors in New York have been investigating allegations that hush money was paid on Mr Trump’s behalf to former porn star Stormy Daniels prior to the 2016 presidential election.