Commuters have been warned to expect delays due to a planned strike by tube drivers.
Members of the RMT union working on the Hammersmith and City Line, which stops at Paddington Station, have voted to walk out for 24 hours from 9.30pm.
If the industrial action goes ahead, there would be no service on the Hammersmith and City Line and only limited service on the Circle line for its duration.
Transport for London (TfL) has advised all travellers to complete their journeys by 9pm.
All other services will continue running, although the District and Piccadilly lines and roads in west and central London are expected to be busier than usual.
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