Strike hits underground services
Late night Tube services faced disruption after London Underground workers went on strike in a row over the sacking of a colleague.
Members of the Rail, Maritime and Transport (RMT) union walked out at 9.30pm on Saturday, mounting picket lines outside some Tube stations in the capital.
The union said it was expecting solid support for the industrial action, which will last until 3.59am. The strike is over the dismissal of a driver for failing two alcohol breath tests.
London Underground (LU) said it had zero tolerance towards drugs and alcohol but the union has described its policy as "outdated and flawed".
The company said it intended to run a good service on all lines but warned there was a "small chance" of disruption.
Nick Brown, LU's chief operating officer, said the strike was "indefensible", adding: "We will not be swayed by it as we will never compromise on the safety of our customers and staff.
"You wouldn't let someone who had been drinking alcohol drive your family in a car, and we don't let people who have been drinking alcohol drive people's families in Tube trains."
John Leach, the union's London regional organiser, said: "LU seem more concerned with defending their flawed policy than they are in treating fairly someone with an unblemished 29-year record.
"The type of machine used to test employees has been known to fail, indeed a failure was recorded last year at Acton depot when a manager tested positive, but the machine was deemed to be faulty. It is LU directors who are defending the indefensible."