Man accused of murdering two British backpackers in Thailand claims he was 'sexually tortured during a violent interrogation before being told to confess' Wei Phyo alleged police stripped him naked and flicked him in the groin 22-year-old also claimed senior officer persuaded him to confess to crime Wei and co-accused Zaw Lin have pleaded not guilty to the murders Hannah Witheridge and David Miller were killed on Kah Tao in september A Burmese man accused of murdering British backpackers Hannah Witheridge and David Miller has alleged police sexually tortured him during a violent interrogation. Wei Phyo told three judges at Koh Samui court that police stripped him naked in a very cold room and 'flicked' him in the groin 'very hard'. The 22-year-old also claimed it was a senior officer in plain clothes who persuaded him to confess. Wie Phyo, who is accused of murdering British backpackers Hannah Witheridge and David Miller, has alleged police sexually tortured him during a violent interrogation. He is pictured (rear) with his co-accused Zaw Lin, (front) Wie Phyo, who is accused of murdering British backpackers Hannah Witheridge and David Miller, has alleged police sexually tortured him during a violent interrogation. He is pictured (rear) with his co-accused Zaw Lin, (front) Wei has since pleaded not guilty to the murders. His co-accused Zaw Lin, also 22, has done the same. Wei told the judges yesterday: '[Police] left me naked and handcuffed in a freezing room for more than an hour and during that time a police officer came into the room and flicked me very hard. 'I tried to protect myself but he pulled my legs apart and then they took photographs of me naked.' He added that as police continued to try to force him to confess to the killings on neighbouring island Koh Tao they kicked him in the back, punched him and slapped him. He alleged: 'They threatened to chop off my arms and legs and throw my body into the sea to feed the fish. 'They also said they would push me into another room and electrocute me.' The British backpackers - Miss Witheridge, from Great Yarmouth in Norfolk, and Mr Miller, from Jersey - were killed on the island of Kah Tao in September The British backpackers - Miss Witheridge, from Great Yarmouth in Norfolk, and Mr Miller, from Jersey - were killed on the island of Kah Tao in September The British backpackers - Miss Witheridge, from Great Yarmouth in Norfolk, and Mr Miller, from Jersey - were killed on the island of Kah Tao in September Their semi-naked bodies were discovered on the beach (pictured) near rocks only 100 yards from bars and other buildings Their semi-naked bodies were discovered on the beach (pictured) near rocks only 100 yards from bars and other buildings Wei also claimed it was a senior officer in plain clothes who ultimately persuaded him to confess to the rape and murder of 23-year-old Miss Witheridge, from Great Yarmouth, and to the murder of Mr Miller, 24, from Jersey. He said: 'He told me I was young and I could just say I did it and just go to prison for several years. 'If I didn't say I did it I would certainly be killed. An interpreter said he could help me so I then signed many documents but I didn't know what they said.' Police and the translator then instructed him on how he should say he killed the British couple, he claimed. Prosecutors also told the court that a mobile phone, said to belong to Mr Miller, linked Wei to the murders. Wei, 22, also claimed it was a senior officer in plain clothes who persuaded him to confess Wei, 22, also claimed it was a senior officer in plain clothes who persuaded him to confess CCTV footage from the evening showed Miss Witheridge with a friend walking along a street near some bars CCTV footage from the evening showed Miss Witheridge with a friend walking along a street near some bars Wei said he had found the mobile, which was discovered near a house where he was staying, on Sairee beach and had taken it home but could not unlock it. He alleged that when he heard about the murders the following day he was worried the phone might be related to someone involved in the killings so his friend smashed the phone and tossed it into bushes near the house. Defence lawyers said the British embassy had not confirmed the phone belonged to Mr Miller. They added that this was because the case could end in a death sentence for the accused men and the UK was opposed to supporting charges that could result in prisoners being executed. The trial continues.