Millions of London commuters caught in the grips of a subway strike have had to cycle, trudge and wait in snaking bus queues.

The strike by London Underground station staff shut down much of the city's network.

Scores of Tube stations and many of the city's subway lines closed in the morning rush.

That meant Londoners have had to walk or take to packed buses... or find scarce taxis to get to work.

Transport unions are protesting against job cuts and ticket-office closures.

London's subway system handles more than four-million journeys on a typical work-day.