Commuters face another day of travel chaos on Thursday because of fresh strike by thousands of workers.
The walkout is expected to cripple Tube services in London and set to cause knock-on disruption into Friday morning.
Members of the Rail, Maritime and Transport union (RMT) are walking out for 24 hours from midnight on Wednesday, in a deadlocked dispute over jobs, pensions and conditions, which will cause more misery for travellers across the capital.