A derailment at Fratton station hit train services from Portsmouth to London today.
South West Trains said trains running to and from Portsmouth Harbour and London Waterloo may be cancelled, delayed by up to 12 minutes or revised at short notice.
The company said in a statement: ‘Due to a train derailment in the depot at Fratton last night, some services in the depot are being delayed.
‘Our engineers are on site, and hope to have all the trains out from the depot shortly.
‘No passengers where involved in this incident.
‘We are sorry for the delays to your journey this morning.’