A Burmese man has confessed to killing two British tourists, including a Leeds University student, in Thailand, according to local reports.
The bodies of David Miller, 24, and Hannah Witheridge, 23, were discovered on a beach on the tiny island of Koh Tao on September 15.
Thai newspaper The Nation reported that a Burmese man admitted carrying out the attack after he was arrested in Surat Thani on the Thai mainland.
Post-mortem examinations revealed that Ms Witheridge, from Great Yarmouth, Norfolk, died from head wounds.
Jersey man Mr Miller, who was three years into a four-year masters degree in civil and structural engineering in Leeds, was killed by severe blows to the head and drowning.
A bloodstained garden hoe, believed to be the murder weapon, was found near the scene of the killings.
Police investigators have previously said they believe three people were involved in the attacks.
Officers have collected 200 DNA samples from people on Koh Tao and the results are expected at some point this week.
Two different semen samples collected from Ms Witheridge’s body are the basis for the DNA analysis, Thai police told the Bangkok Post.
Last week police colonel Kissana Phathanacharoen said a reward of 700,000 baht - roughly £13,300 - was being offered for information leading to the arrests of the killers.
Around 150 police officers were posted to Koh Tao as part of the murder investigation.
Mr Miller’s father Ian has said he believes his son stepped in to help Ms Witheridge during an altercation.
He told the Daily Mail: ‘’It has become clearer and clearer that it is quite likely David was stepping in to help a girl who was in trouble.’’