Ex-US Donald Trump says he expects to be arrested on Tuesday

Donald Trump says he expects to be arrested on Tuesday, and the former US president has urged his supporters to launch mass protests in response.

It comes as prosecutors have been investigating alleged hush money paid on Mr Trump's behalf by his lawyer to porn star Stormy Daniels prior to the 2016 presidential election.

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

But, his lawyer said there had been no communication from law enforcement and the former president's social media post was based on media reports.