INVESTIGATIONS into a rail crash in Salisbury on Sunday will focus on what led a train to slide on wet tracks.

The driver of South Western Railway's 17.20 service from London Waterloo to Honiton slid past a red signal for 220 metres after applying service and emergency brakes.

The train collided with the 17.08 Great Western Railway service from Portsmouth Harbour to Bristol Temple Meads at the Fisherton Tunnel.

Driver, Robin Tandy, 74, was hailed as a hero after trying to prevent the crash, in which he sustained 'life-changing' injuries.

Up to 13 of the 92 passengers on board the trains were taken to Salisbury District Hospital for treatment.

Rail Accident Investigation Branches is investigating the accident with help from Network Rail, British Transport Police, SWR and GWR.

SWR managing director Claire Mann said: “We are pleased their early assessment shows the SWR driver reacted correctly to the signals by braking to slow the train down. We believe his actions went some way to preventing a much more serious incident and we wish him a speedy recovery .

“We will continue to work closely with the relevant authorities and our industry partners on all aspects of the investigation.”