US President Donald Trump has made history by becoming the first president in the US to be impeached twice, after being charged with "incitement of insurrection" over last week's deadly storming of Congress.

The House of Representatives accused Mr. Trump of encouraging violence with his false claims of election fraud.

He now faces trial in the upper chamber, the Senate, but not before he leaves office next Wednesday. Senators can vote to bar him from ever holding public office again, the BBC reports.

Following the Wednesday vote, Trump released a video calling on his supporters to remain peaceful, without mentioning his impeachment.

The FBI has warned of possible armed protests planned for Washington DC and all 50 US state capitals before Joe Biden, a Democrat, is inaugurated on 20 January 2021 as the new US president.