The former Polish foreign minister Radoslaw Sikorski posted a video on Twitter that seems to show people lying injured in the road on Westminster Bridge.
Sikorski, a senior fellow at the Harvard Centre for European Studies, says he saw at least five people lying on the ground after being “mown down” by a car.
Sikorski told the BBC he “heard what I thought what I thought was just a collision and then I looked through the window of the taxi and someone down, obviously in great distress.
“Then I saw a second person down, and I started filming, then I saw three more people down, one of them bleeding profusely.”
Watch below via Twitter:
A car on Westminster Bridge has just mowed down at least 5 people. pic.twitter.com/tdCR9I0NgJ
— Radosław Sikorski (@sikorskiradek) March 22, 2017