Police from British Transport Police are hunting a knifeman who fled the scene after two people were stabbed at a Kennington Underground Station late on Wednesday night
Three people - including a Good Samaritan who was trying to prevent one of the attacks - were badly injured in two horrifying incidents of violence in the capital last night.
Depraved Ryan Johnson, 37, carried out the horrifying attack on the Piccadilly Line between Heathrow and Hounslow West in front of a horrified passenger and his child