Disturbing video captures the moment a woman was fatally shot in the chest inside the US Capitol building Wednesday, as President Trump supporters intent on disrupting the certification of the presidential election stormed in.

The 30-second clip posted to Twitter captures the sound of a single gunshot, then shows the unidentified woman lying on the floor.

Law enforcement sources told The Post on Wednesday evening that she had died.

The video showed blood pouring from the mouth of the motionless woman, who was draped in red, white and blue.

Fellow protesters could be seen tending to the female protester, who was later seen being carried out of the building on a stretcher.