More than 50 people remain in hospital with eight fighting for their lives days after a train crash in Bedford.Over 100 people have received medical treatment since Friday, when a train smashed into the back of another train on the same lines just after 5pm.Shaun Burton, 60, was killed instantly when the Luton Airport Express he was driving came in contact with the other train.Tributes poured in for the 'dedicated' civil servant yesterday and his family is being supported by specialist officers from BTP. Police confirmed today that 53 people remain in hospital, though they said numbers are 'changing frequently'.The East Midlands Railway (EMR) service is thought to have come to a halt due to a fault with a safety system which warns train drivers if there is a red signal ahead.The driver of the stopped train from Nottingham had been reporting a fault to staff on the phone when the other slammed into it.It is thought that the second train may have failed to trigger its automatic warning system, which is normally used if a train passes a yellow or red signal without braking.Ordinarily, this causes an alarm to sound in the driver's cab. If that warning is also ignored, the train protection system automatically applies the brakes. It is not known if this malfunction led to the crash. Investigators begin their work in the aftermath of the train crash near Bedford on Friday evening Specialist crane equipment has also arrived this morning at the crash site which will be used to lift the two trains off the tracksDeputy Chief Constable Stuart Cundy said: 'First and foremost, the thoughts of everyone at BTP are with the driver Shaun Burton's family and colleagues, and all those injured and affected by the collision on Friday.'This is a priority investigation for BTP and our experienced senior investigating officer is working in parallel with the Rail Accident Investigation Branch to establish the full circumstances of how this incident came to happen. 'We have recovered personal property from the two trains and will shortly be providing an update on how affected passengers can retrieve their belongings.'Friday evening witnessed an awful incident that presented complexities and challenges for all those who responded. I have been humbled by the actions of passengers and staff who were on the trains, and by the professionalism of our officers, the wider emergency services and partners.'The recovery operation is now underway, and work continues this week to remove the damaged trains and carriages and allow the railway to reopen.Police are looking to speak to any passengers on the train and have released a QR code for any witnesses to use to get in conatct.Both services were heading for London before the crash. The first, a 3.50pm service from Nottingham to St Pancras stopped on the track.Then the 4.40pm Corby train, which had stopped at Bedford station just two minutes prior, crashed into the back of it. It was the highest number of casualties of any rail disaster in the UK for 20 years.Mr Burton's family said yesterday that they were 'devastated by his loss' and said their thoughts were also 'with those affected by this incident'. The much-loved driver joined East Midlands Railway in 2019 and became a Mainline Train Driver in 2024, where he often worked the Corby to London route.He previously held roles at Dews Coaches and Arriva Bus, before moving into working in railway jobs.A former colleague paid tribute on social media, calling him a ‘wonderful person’.Posting on Facebook he added: ‘He had a gift for words – always knowing exactly what to say, offer wisdom or bring comfort when it was needed most.'His wit was effortless, his humour unforgettable and his intelligence shone through every time I spoke to him.‘But beyond his sharp mind and quick smile, he was simply a great man. Kind, generous, and genuine, he will leave a lasting impression on everyone fortunate enough to know him.’ Tributes have poured in for the 60-year-old, who had also been a local parish councillor Driver Shaun Burton died in the crash between the two trains in Bedford on Friday afternoon