US President Donald Trump has committed to an “orderly” transition of power a day after his supporters stormed Congress, provoking world condemnation.

Mr Trump’s remarks, posted on Twitter following a suspension, were widely seen as his first public acknowledgement of electoral defeat.

He spoke as top Democrats called for him to be removed from office.

Hours later, Capitol Police said one officer had died from injuries sustained during the riots.

Four others also died during the unrest. Officials said one Trump supporter was shot by police, while three died as a result of “medical emergencies”.

The breach of the seat of US government led to the evacuation of shocked lawmakers, postponing for several hours their certification of President-elect Joe Biden’s victory over Mr Trump.