Firefighters assisted police with the incident in Westminster yesterday.
Three fire engines, two fire rescue units and around 25 firefighters were at the scene throughout the afternoon and into the night.
Firefighters on the Brigade’s fireboat rescued a person from the river Thames and bought them to Tower Pier.
London Fire Brigade Director of Operations Dave Brown said:
“Our thoughts are with all those affected by yesterday’s tragic incident in Westminster, including the police officer who made the ultimate sacrifice in the line of duty. Brigade crews assisted Metropolitan Police Officers and the London Ambulance Service at the scene, helping paramedics treat patients on Westminster Bridge.
"Firefighters from the Brigade’s fireboat also rescued a person from the Thames and bought them to Tower Pier. The actions of all Brigade staff and those of the other emergency services are a credit to the organisations they serve.”
Police are appealing for any members of the public who may have images or footage of the incident to send them to this address:
The Brigade was called at 1447.