An engineer has been killed while working on a moving walkway at Waterloo station.
A police investigation is currently underway into the incident, which occurred in the early hours of this morning.
A one-way system has been put in place, with Transport for London (TfL) warning against commuters switching between Tube lines.
TfL told passengers they could not use the station interchange due to a fault with one of the Tube station’s two travelators.
The man reportedly died while working on one of the moving walkways at around 2.30am. His death is not thought to be suspicious.
The British Transport Police (BTP) said in a statement: “Officers were called just after 2.20am this morning (Wednesday 18 September 2019) to London Waterloo Underground station to reports that a contractor worker had received an injury.
“London Ambulance Service and London Fire Brigade were already on scene and it became apparent the incident was more serious.
“Lifesaving attempts were sadly unsuccessful and a male was pronounced dead at the scene. Next of kin have not yet been informed. Enquiries into the incident continue.”
A TfL spokesperson said: “We are working with colleagues in the British Transport Police following an incident at Waterloo station in the early hours of this morning. An investigation is underway.”
Later in the day, London mayor Sadiq Khan tweeted:
There were severe delays on several Tube lines at rush hour this morning, following a signal failure at Baker Street.
The fault led to severe delays on the Circle Line while the Hammersmith & City Line also suffered severe delays. Transport for London (TfL) urged commuters to use local buses instead.
The Metropolitan Line was also part suspended between Wembley Park and Aldgate due to the problem, with severe delays hitting the rest of the line.