Some of the children travelled to performing arts school in London by train and underground during the rush hour, the jury heard.

BBC: Amanda Webber

London Underground is to be prosecuted by the rail regulator over a runaway engineering train.

BBC: Runaway Northern Line Tube train: Charges brought

Take an Underground train a few stops from the borough of Westminster, and life expectancy drops by 12 years.

BBC: Would a new law narrow the gap between rich and poor?