In the space of just two London days, 30 people were treated after a carbon monoxide leak at a shop, a man was stabbed and a man was hit by a train.
Pictures from the scene show a Northern line station has been closed for over four hours after a stabbing in Colliers Wood station.
A man who was stabbed in the head has been arrested after a fight between three people in Colliers Wood station.
A man has been taken to hospital after being stabbed in the head at a Northern line London Underground station in Colliers Wood.