A video from David Davies MP captured the panic as politicians and civil servants fled from the Palace of Westminster to Portcullis House after five people were killed in a vehicle and knife attack on Wednesday, March 22.

At least four people, including a police officer and a suspect, were killed in Wednesday’s attack, the BBC reported. The suspect was shot dead by police in Westminster.

This video from the Welsh MP shows people running and yelling “Get back,” “Is he coming?”