A Bradford man who died after a collision with a truck has been named as Francis Lee Conway.

Police believe the 33-year-old pedestrian, also known as Frank, may have had an altercation with up to five men immediately before he was struck by the vehicle.

Detective Superintendent Chris Thompson called a press conference over the weekend where he issued a fresh appeal for witnesses to the incident on Canal Road, Bradford, at 1.30am on Friday.

He appealed for up to five men in a black car to come forward or for members of the public to identify them.

Det Supt Thompson, of the Homicide and Major Inquiry Team, said: "This is a very tragic incident and we are anxious to establish the full facts.

"Inquiries are still at an early stage."

Police believe Mr Conway may have been running away from a group of men when he was in collision with the recovery vehicle. He suffered serious head injuries and died on Friday night in Leeds General Infirmary.

Police closed off a one-mile stretch of the road following the collision near the junctions with Hillam Road and Sidings Close.

Det Supt Thompson, who is leading the inquiry team, said he believed Mr Conway was involved in an incident with four to five men in a black car just before he collided with the truck.

"Canal Road is a very busy main artery at any time of the day and there were people and vehicles around.

"There was an altercation with this man and I am keen to establish the nature of this and get to the full facts," he said.

Two men, aged 26 and 17, were being questioned in connection with the incident.

The fatal collision led to Bradford North Police cordoning off a one-mile stretch of Canal Road while they investigated the scene.

Anyone in the black car or who has any information should call police on (01274) 373700 or Crimestoppers anonymously on 0800 555 111.

There is also a text message service available for people to send information to - text the word canal followed by your message to 07786 200 806.