The US Congress has certified Joe Biden’s victory in the presidential election, hours after Trump supporters stormed the building in an attack that saw four people die.
Lawmakers resumed the session after police managed to remove the mob, which had been encouraged by President Trump in a bid to overturn his defeat.
The certification clears the way for Mr Biden to be sworn in on 20 January.
In response, Mr Trump finally pledged an “orderly transition” of power, a BBC report said.
Democrat Joe Biden’s victory was confirmed in the early hours of Thursday by a joint session presided over by Vice-President Mike Pence, who said the violence had been a “dark day in the history of the United States Capitol”.
Wednesday’s chaotic scenes followed months of escalating rhetoric from Mr Trump and some Republican allies that sought to undermine the result of the 3 November election. The invasion of the Capitol by the president’s supporters – some armed – was an event without precedent in modern American history.
Mr Biden blasted the “insurrection” as Mr Trump, while telling the mob to go home, continued to make false claims of electoral fraud. The outgoing president’s Twitter and Facebook accounts were later frozen.
After objections by some Republican lawmakers to overturn the result in Arizona and Pennsylvania were rejected, Congress formally certified the final electoral college vote at about 03:30 local time, with Mr Biden receiving 306 votes to Mr Trump’s 232.
All we need in the world is peace not violent my people.. God take control of this issues everywhere and grant us peace.