Thousands of rail passengers in London and the South West of England are facing major disruption after a train partially derailed at London Waterloo.

The derailment of the South West Trains service, along with a points failure between Vauxhall and the London Waterloo terminal, has caused cancellations, delays and rerouted journeys across the network.

Engineering staff, police and the fire brigade were seen on the platform at Waterloo with delayed to services into the station expected until at least 1pm.

Passengers are advised to seek alternative routes with train services being reduced to avoid congestion at Waterloo.

The derailment occurs as passengers heading into the terminal already face significant disruption amid a significant upgrade to the station.

Which routes are disrupted?

South West Trains advised the following changes to travel:

SWT said tickets from Great Western Railways, CrossCountry and London Underground can be used "via all reasonable routes" to complete disrupted journeys.