The Rail Accident Investigation Branch reported that an out-of-service passenger train collided with the buffer stop at platform 1 at Liverpool Street station in London at around 00:58 on 15 October 2026. The train was travelling at approximately 7 mph (11 km/h) at the time, according to the branch's 3 November 2026 news story. The driver was taken to hospital but did not suffer any physical injuries. The train and the buffer stop were damaged, and the first three vehicles of the train derailed.

The branch said it had carried out a preliminary examination of the circumstances and, after assessing the evidence gathered so far, decided to publish a safety digest. It said the digest would be made available on its website in the next few weeks.