A plea has been issued for information which could help trace the whereabouts of a Norwich prostitute, more than 12 years after she went missing from the city.

Kellie Pratt, pictured right, was last seen outside the Rose Inn pub at the junction of Queen's Road and City Road in Norwich at 11.30pm on Sunday, June 11, 2000, but has not been seen since. Kellie, who was 28 at the time of her disappearance, was working in the red light area of Norwich when she vanished and was last seen talking on her mobile phone outside the pub.

Minutes later, two women were seen arguing in nearby Kensington Place – although it is not certain that Kellie was one of them.

The mother of two was later reported missing by friends after she failed to meet them for a pre-arranged lift, and neither she nor her Nokia 6100 phone have ever been found.

Her case is one of a number of investigations being looked at by Norfolk Constabulary's cold case team. Detective Chief Inspector Jes Fry, senior investigating officer in the case, said: 'We spent a significant amount of time when she first went missing to try to establish A, where she was, and B, if she had been murdered, and C, establish who was responsible for that.

'If she was killed the difficulty is we don't have the scene where she was killed and don't have her body in order to take forensic samples from. We're therefore heavily reliant on information from people who may not yet have contacted the police and therefore we would urge anyone who has any knowledge of what happened to Kellie to contact someone in the Major Investigation Team (MIT) at Wymondham so we can examine what they have to say and see if it will help progress the inquiry.'

Kellie is described as white, 5ft 4in, of medium build with fair hair shaved at the front and sides, and badly scarred arms. At the time of her disappearance she was wearing a black mini skirt, black T-shirt and a light blue coat.

To view the cold cases log on to the website www.norfolk.police.uk, click on news and events and then cold cases.