DETECTIVES are still hunting the killer of Huddersfield teenager Jason Ripley.

The 17-year-old died in Huddersfield Royal Infirmary, hours after police were called to a fight in Sheepridge last Thursday.

Jason, who lived in Dalton with his mother and stepfather, suffered fatal stab wounds when trouble flared on Sheepridge Road at 2.10pm on Thursday.

He was found collapsed and bleeding badly on the pavement. Paramedics took him to the Infirmary, where he was given emergency surgery but he died at 7.30pm.

The incident happened outside Jack Pearson's betting office and the Pricecutter general store.

It is not clear whether schoolboy boxing champion Jason or his killer had been in the bookmaker's or the shop, which also acts as a post office.

Police said they were anxious to trace an African- Caribbean youth in his mid to late teens who is believed to have been at the scene. He was wearing dark clothes.

The man heading the investigation, Det Supt Paul Taylor, said some witnesses had already come forward.

He added: "We are determined to catch whoever is responsible for Jason's death."

Anyone with information which could help the inquiry should phone detectives on 01484 436683 or Crimestoppers free and anonymously on 0800 555 111.