South West Trains are delayed for up to 50 minutes.
Passengers face major disruption on trains this morning after overnight engineering work continued into the week.
South West Trains said there will be disruption between Twickenham and Clapham Junction until further notice.
Trains are delayed for up to 50 minutes.
Tickets are being accepted First Great Western trains between London Paddinton and Windsor and Eton Central and local bus services.
Passengers can also alternatively use tickets on London Underground services on Bakerloo, Piccadilly and District lines.
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