POLICE are hoping footage from dashboard cameras will help them find out how the M27 fatal crash happened.
It comes as officers revealed they believe the person who died was a man in his 40s.
His Ford Focus collided with a lorry and caught fire.
The man died at the scene on Thursday morning and officers are still carrying out enquiries to confirm identity and contact all next-of-kin.
Sergeant Adrienne Jerram from the Serious Collision Investigation Unit said: ‘I’m aware there are video clips of the incident recorded on dashboard cameras and I am very keen to hear from anyone who can us provide with this footage.
‘This is a complex investigation into a serious collision in which one person died.
‘We’ve spoken to all the drivers involved and at this time we are focussing on establishing the exact sequence of events leading to the collision as well as which vehicles were in contact with one another.
‘A lot of people were driving along that stretch of the motorway on Thursday morning and I’d like to thank everyone who has come forward with information so far.
‘I’d still like to hear from you if you’ve not yet spoken to us and can help with our enquiries, especially if you witnessed the collision or saw any of the vehicles involved.
Anyone with information is asked to contact the Serious Collision Investigation Unit on 101.
The crash happened on the M27 eastbound just before junction 9 for Whiteley and the road was closed overnight on Thursday.
The lorry driver, a 53-year-old man from Wiltshire, was shaken but otherwise uninjured.
The other vehicles involved were black Citroen C5 driven by a man, 53, from Hedge End, a silver Vauxhall Zafira driven by a 29-year-old man from Eastleigh and carrying four passengers, a 25-year-old woman and three young children and a black Honda CR-Z driven by a man, 39, from Swindon.