A mother of two who was run over by two Tube trains “caused” her own injuries, Transport for London (TfL) has claimed.

Sarah de Lagarde, 46, had her right arm and leg partially amputated after she fell onto the tracks at High Barnet station, in north London, in September 2022.

She has brought a High Court case against TfL in which she will seek damages of more than £25 million. In court documents, TfL has claimed “the incident was caused or contributed to by the claimant’s negligence”.

Sir Sadiq Khan, the Mayor of London, has previously told TfL to avoid “victim-blaming” when passengers are injured or killed on public transport in the capital.

Ms de Lagarde, who now has two prosthetic limbs, was travelling home on the Northern Line on Sept 30 2022 when she fell asleep. She awoke at High Barnet, at the end of the line, at 9.53pm and alighted from the train onto a wet platform.

“The claimant took a few steps forward onto the platform and then took a few steps backwards, before the rear of her body struck the rear side of the door of the train she had exited from,” according to TfL’s court documents.

“The claimant continued to move backwards and, approximately seven seconds after exiting the train, she fell into the gap between carriages five and six of the train.”