Prime Minister Theresa May has been asked to intervene in the case of murdered backpacker Kirsty Jones.

The 23-year-old, from Tredomen, near Talgarth, was raped and murdered in a backpacker’s hostel in Chiang Mai, northern Thailand at the start of what should have been a round the world adventure in August 2000.

Today Brecon and Radnorshire MP Chris Davies asked Mrs May to step in amid fears the unsolved murder could be closed by Thai authorities.

The Conservative also asked the UK Government to help ensure Kirsty’s personal belongings are returned to her parents, 17 years after her death.

Speaking during Prime Minister's Questions Mr Davies said: "Seventeen years ago my constituents Sue and Glyn Jones received a phone call that no parent should ever have to take.

"The caller told them that their daughter Kirsty who was backpacking in Thailand had been brutally murdered.

"The Thai authorities are due to close their investigation into Kirsty’s murder soon. But as of yet her case remains unsolved.

"Her killer remains free and her parents have neither justice nor closure.

"So can I ask the Prime Minister to push the Thai authorities to use recently improved DNA techniques to bring the killer to justice, to endeavour to provide more support for families who have lost loved ones abroad, and finally to ensure that Kirsty’s personal effects at last return back home to her parents from Thailand?"

Mrs May said the British Government doesn’t interfere in police investigations but said she understood the Foreign Office has been providing support.

She said: "I am sure that the whole House would join me in offering condolences to the Jones family and in recognising the terrible trauma that they have been through as a result of the killing of their daughter.

"It’s obviously – as I am sure Mr Davies recognises – not for the British Government to interfere with the police investigations that take place in another country but I understand that the Foreign Office has been providing support; it remains ready to do so and our embassy in Bangkok continue to raise these issues as it has been with the Thai Government."