It is not clear how many would be affected, but EWR says it could mean shorter journey times.

Sotherby's says the Ai-Da Robot work "marks a moment in the history of modern and contemporary art".

A Chiltern Class 168 travelled along the first section of the £6bn East West Rail project.

Officers have applied for forfeiture and destruction of the vehicles, Thames Valley Police says.

Moira Farnell's family raised concerns about a broken pavement before her death, a coroner says.

The 37-year-old ex-Met Police constable is set to appear before magistrates on Wednesday.

There is an increased police presence in the area while officers investigate.

The Bletchley Park installation will see an AI character give tailored responses is a "world first".