Rail passengers have been warned not to travel between Basingstoke and Salisbury on Monday as investigations continue into the cause of a train crash on Sunday.

Two trains collided at Fisherton Tunnel in Salisbury on October 31.

At around 18.45 GMT this evening, Sunday, October 31, the rear carriage of a Great Western Railway service from Portsmouth Harbour to Bristol Temple Meads derailed, after striking an object on its approach to Salisbury station at Fisherton Tunnel.

At this stage, it is not known what the object is or how it got there.

Signalling in the area was knocked out in the collision.

As a result, the following South Western Railway service from London Waterloo to Honiton then collided with the Bristol train.

Now, in a join statement, GWR, SWR and Network Rail have warned passengers to expect disruption in the Salisbury area on Monday.

The railway will be closed in Salisbury on Monday, and will affect SWR services between Exeter and Basingstoke.

Passengers are urged not to travel on this part of the network.

The join statement in full reads: "At 1845 GMT a GWR and an SWR train collided just outside Fisherton Tunnel near Salisbury. All customers and colleagues are accounted for and a number of people have been taken to hospital. Our thoughts are with them and we thank them for their patience and understanding this evening.

"The railway will be closed in the area on Monday, affecting SWR trains between Exeter and Basingstoke, and GWR trains between Westbury and Portsmouth, while specialist teams continue their investigations and we urge customers not to travel on this part of the network.

"We're extremely grateful to the emergency services who attended the scene and helped our customers and staff in extremely difficult circumstances.

"We will be co-operating flly with the British Transport Police and Rail Accident Investigation Branch to understand how this incident happened."