POLICE investigating the murder of 12-year-old Natalie Ruddick are trying to trace three people who may have vital clues to the crime.

Natalie died after being stabbed several times in a sustained attack at her home in Frosterley Place, on the New Mills estate, in the Arthur's Hill area of Newcastle.

Police continue to appeal for information from people who may have been in the area between 10am and 2.30pm on Wednesday.

They are particularly keen to trace three people who were seen by witnesses, from about 1pm to 3pm, in Thorpe Close, which is at the rear of Frosterley Place. They were making their way to Beaconsfield Street.

Two were women, both wearing long winter coats, and the third a youth, who was running.

Detective Superintendent Tony Thornton, who is leading the investigation, said: "We have had a number of calls from members of the public following our appeal for information.

"We are keen to trace three people who may be potential witnesses and would ask them to come forward."

Natalie, a promising cross-country runner, described as a lovely, bubbly girl, had stayed at home on the day of the attack because she was unwell.

She was one of six children and lived with her parents, Michael and Dawn.

Meanwhile, police have been given a further 24 hours to question an 18-year-old Newcastle man in connection with the investigation.

Anyone with information has been asked to call 0191-214 6555, ext 62345