Investigators say they are examining all circumstances surrounding the incident in south London.

Officers are treating Dorothy Chiles' death as linked to an assault that left her with a broken hip.

Ronald De Souza could have his name cleared after his conviction is referred to the Court of Appeal.

The victim was assaulted by a woman on the Central Line on 2 December, British Transport Police say.

James Hitchcock, 32, died in hospital on Wednesday after he was allegedly assaulted in York.

James Hitchcock died in hospital after allegedly being attacked at York station on Sunday evening.

Jorge Ortega, 61, died following an attack and a man has been arrested by British Transport Police.

Two British Transport Police officers were taken to hospital after being exposed to a chemical.