Thai Police have said two Burmese men have apparently confessed to killing two British tourists on Koh Tao island.
Hannah Witheridge and David Miller were found close to bungalows where they had been staying
Police told the BBC they believe they have identified the two men who killed Hannah Witheridge and David Miller.
Thailand's police commissioner said DNA samples taken from Ms Witheridge's body matched those of two Burmese men who are in police custody.
The bodies of Ms Witheridge, 23, and Mr Miller, 24, were found on the beach on 15 September with severe head injuries.
The two men are expected to be presented at a news conference on the popular tourist destination of Koh Tao on Friday.
A reward of about £13,000 has been offered for information leading to arrests.
More than 100 officers are involved in the investigation and have been collecting evidence and taking DNA samples from those working on Koh Tao.
Koh Tao is a popular destination for tourists
A post-mortem examination found that Mr Miller, from Jersey, was killed by severe blows to the head and drowning.
Mr Miller's funeral is due to take place on Friday. In advance of the service, his family asked for privacy.
A statement from Ian, Sue and Michael Miller said: "We have been overwhelmed by the breadth and depth of support provided to us by so many here in Jersey and also by people far away.
"We were also particularly touched by the vigil and prayers held by good people on Koh Tao."
An inquest which opened in Norwich earlier this week heard that Ms Witheridge, from Great Yarmouth, Norfolk, died on the beach from "severe head injuries".
The brief hearing was told the student from the University of Essex had been identified using DNA samples taken from her parents, and Thai authorities had requested the pathologist's report.
A full inquest will take place on 6 January.
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