There are delays of up to 30 minutes on CrossCountry trains between Southampton Central and Brockenhurst due to a signalling problem at Redbridge.
First Great Western and South West Trains services are also affected. It is hoped that a normal service will resume from around 6.30pm.
More top news
A man who was in possession of indecent images of children has been given a three-year community order.
New images of how Heathrow would look if it expands with a new runway have been revealed to ITV Meridian.
James Wright has the latest weather forecast for the east of the region.