Brian Mitchell: Man run over by four Tubes, RAIB report reveals

The RAIB report said there were no passengers or staff on the platform when Mr Mitchell fell, at about 14:45 GMT, and the driver of the first train didn’t see him “possibly because their level of attention was reduced due to the use of automatic train operation”.

The report stated: “The operator may also have been distracted by the presence of another operator who was standing on the platform as the first train arrived at the station.

“The consequences of the accident were made more severe because the operator of the second inbound train to arrive at the platform also did not see the passenger, while the operator of the third inbound train saw something when they were arriving at the platform but did not recognise what they saw as being a person.

“The fourth inbound train was not stopped by a customer service assistant who was present on the platform when it was entering the station, even though the assistant was by now aware that a person was on the track.”

Each outbound train departed the station without the drivers noticing “because the passenger was underneath their respective trains before they departed”.