Severely disrupted London Underground services spurred Londoners to turn to bikes, buses and black cabs to make their way through the capital during the first working day of a Tube workers' strike.
Members of the Rail, Maritime And Transport union (RMT) staged the walkout over pay and conditions, including a request for a reduction in the hours that make up a working week.
The Elizabeth line and the Overground were operational, albeit much busier than usual, Transport for London (TfL) said.
Industrial action is due to continue until 08:00 BST on Friday.
Cycle hire company Lime, which has more than 25,000 bikes across London, said it tried to keep as many of them as possible in service.
