RMT strikes expected to bring London tube to a halt for four days

Buses and trains likely to be overcrowded as union members take action in row over pay and 32-hour week

Strikes by tube staff are due to start on Friday, in a series of walkouts that are expected to close the London Underground entirely for four days from Monday.

Londoners have been urged to check before travel next week, with virtually no tube services expected to run and other transport in the capital likely to be affected by crowding and congestion.