WASHINGTON: US Congress has formally certified Joe Biden’s presidential election victory following a nightmare of unprecedented political terror.

The House and Senate certified the Democrat’s Electoral College win early Thursday after a violent throng of pro-Trump rioters spent hours Wednesday running rampant through the Capitol, Associated Press reported.

The death toll in the violent attack carried out by pro-Trump rioters on the US Capitol reached four.

The rampage began shortly after President Donald Trump repeated his unfounded claims of election fraud to thousands of rallying demonstrators he’d invited to Washington.

Many then surged to the Capitol after he incited them to go there as lawmakers debated the electoral votes.

More than six hours after the violence erupted, lawmakers resumed their session. Biden defeated Trump by 306-232 electoral votes and will be inaugurated on Jan. 20.

(With inputs from agencies)