US President Donald Trump's former lawyer Michael Cohen is expected to plead to lying to Congress in relation to Russia inquiry, US media report.
Cohen will admit misleading lawmakers about a Trump real estate project in Russia, say reports.
He appeared unexpectedly at federal court in Manhattan on Thursday morning.
In August, Cohen pleaded guilty to violating finance laws during the 2016 presidential election by handling hush money for Mr Trump's alleged lovers.
Thursday's development is the latest twist in the special counsel's investigation into whether Trump or his inner circle colluded with a Russian attempt to influence the 2016 presidential election.
Cohen - once a staunch Trump loyalist - was interviewed in October last year behind closed doors by congressional investigators.
