From the
Portsmouth News:
Delays for train passengers to and from Portsmouth
Electrical supply problems are causing disruption to train commuters in Portsmouth this evening.
Trains to and from Portsmouth Harbour are delayed by up to 20 minutes due to electrical supply problems near Hilsea.
As a result, South West Trains, Southern and First Great Western services are unable to run between Portsmouth and Havant.
South West Trains are unable to run in the London direction between Hilsea and Havant. Some trains will be terminated at Havant to run back to London.
Stagecoach buses, on Route 21, are accepting tickets between Portsmouth and Havant.
Southern passengers can use their tickets on Stagecoach 700 buses between Chichester and Portsmouth, on South West Trains services on any reasonable route, and First Great Western trains between Portsmouth and Southampton.