THE heartbroken parents of a 16-year-old boy killed by a train near to Shipley station want to reopen the case because they believe missing witnesses may have vital new information about his death.

A coroner concluded that teenager Hasan Jabbaar died accidentally after he "inadvertently strayed" on to the rail tracks and was struck by the train on Bonfire Night 2014.

But his parents, Asia Rashid and Mohammed Bilal, believe there is still evidence to be uncovered which could shed new light on their son's death.

The couple, of Rossefield Road, Heaton, Bradford, who have complained to British Transport Police about shortcomings in the investigation into Hasan's death, have now issued a public plea for information, which might allow them to challenge the coroner's verdict.

The family is being supported by a leading firm of solicitors.

The couple claim there were delays and mistakes in the investigation, vital CCTV coverage had been missed, and two important witnesses did not turn up at the inquest.

Mrs Rashid, 40, said they hoped to fill in the missing hour between Hasan leaving the mosque and being struck by the train, at about 7.10pm.

She said: "We lost a really special person and I miss my son every single day. He was a big part of our lives. It is hard not knowing what happened to him before he died.

"I hope we can find out more about that missing hour, and more information about what happened to him. Maybe someone saw unusual activity at the station, or saw him at the mosque."

Mr Bilal, 39, said the family believed other people had been with their son.

"Some came forward and then backed out," he said. "One boy told a teacher he was part of a group who were with Hasan at Shipley on the night of his death. Those boys know what happened that night."

During the inquest, in January, the family raised concerns that a third party was involved in Hasan's death but Assistant Coroner Oliver Longstaff said there was no evidence the teenager was coerced or abandoned there having arrived there in company.

But Mr Bilal said: "We think he was fleeing some sort of danger."

He described his son as a "normal teenager" who went to the mosque and was doing well at school.

He added: "It's very hard. When the kids are coming back from school, you think that Hasan is going to come home."

The family's solicitor, Chris Topping, said the family was looking for any new evidence that would justify them challenging the inquest verdict and potentially reopen the investigation.

Mr Topping said: "My view is the family has been let down by the poor quality of the investigation at the outset. Their son lost his life and they still have questions about what happened on the night of his death.

"The difficulty is how you go forward, after the coroner's verdict. If new evidence came to light we would hope to see if there was a route to have the investigation reopened."

Mr Topping said there had been an issue with BTP not saving CCTV evidence. He said the family had made a complaint to BTP about its investigation and some of the coroner's criticisms were directed towards the force for not doing a full investigation at the outset.

A spokesman for British Transport Police said: “Hasan Jabbaar's death was a tragedy and our sympathies remain with his family.

"Hasan’s family raised concerns regarding the investigation during the inquest, a number of which were addressed by the coroner, and no further recommendations were made towards the force.

“Following the inquest we have launched an internal inquiry to further examine some of these concerns. This enquiry remains ongoing and we are, and will continue to keep the family updated regarding its progress."