The driver of a tram which derailed in Croydon this morning killing 7 people and wounding at least 50 others is being held by police on suspicion of manslaughter.
British Transport Police confirmed they were questioning the 42 year old man, who is from Beckenham.
An investigation is underway into exactly what caused the crash - however investigators have stated the tram was travelling at a higher than normal speed when it crashed.
A tram driver who appears to fall asleep at the wheel in a video filmed by a commuter has been suspended.
Transport for London has offered to pay for the funerals of the seven people killed in the tram crash in Croydon.
The Rail Accident boss from Network Rail says that investigators have 'downloaded data from a black box' from the derailed Croydon tram.