The chairman of the U.S. congressional committee that is leading the inquiry into President Donald Trump's dealings with Ukraine said on Monday the impeachment process would move to the next step shortly after lawmakers return to Washington next week from a break.

House of Representatives Intelligence Committee head Adam Schiff said the panels involved in the impeachment probe would send a report to the House of Representatives Judiciary Committee after lawmakers come back from the U.S. Thanksgiving holiday.

Producing the report is a prerequisite for a possible vote in the Democratic-led House on articles of impeachment — formal charges — against the Republican president.