AN unsolved murder investigation has had a reward for information increased to £25,000.

Police today re-launched their appeal for information into the killing of 23-year-old former model Beata Bryl.

Her badly burnt body was found in woodland in Hedsor Lane, Wooburn Green, on July 29 2006.

She was last seen alive the previous day when CCTV footage saw her at Leytonstone tube station in East London, near to where she had been living.

Miss Bryl, originally from Poland, was on a train travelling towards West Ruislip, but it is still not known which station she got off at.

The CCTV footage showed she was carrying a rucksack and a Mark One carrier bag containing some of her possessions. Neither bag has been found.

It is believed she was killed indoors before her body was dumped in woodland.

On Monday, police increasing its reward for information resulting in a conviction from £10,000 to £25,000.

Later this week the ITV crime appeal show Inside Crime' will also make a fresh appeal for information.

Det Insp Colin Seaton, leading the investigation said: "Although it's two years on from Beata's murder, we're hoping this latest appeal will inspire anyone with information to come forward, especially anyone who didn't talk to us at the time.

"Whatever you tell us, no matter how big or small, may be the piece in the jigsaw that helps to finally bring Beata Bryl's killer to justice."

Anyone with information can contact DI Colin Seaton on 0845 8 505 505 or call the Crimestoppers charity anonymously on 0800 555 111.