A British woman killed in Thailand has been identified as Hannah Witheridge, by Thai authorities.
The 23-year-old from Great Yarmouth was murdered last night with David Miller from Jersey on the island Koh Tao.
The pair were attacked on their way back to their hotel after leaving a beach party together.
The bodies of two British tourists found on a beach on the popular Thai island of Koh Tao were discovered with "gruesome" head wounds, police have said,
Colonel Prachum Ruangthong said the man and woman were found on a rocky beach and their clothes and a bloodstained hoe were found nearby.
Police suspect the pair were killed with the hoe, leaving deep wounds on their heads.
Mr Prachum also said police are checking closed circuit TV footage at nearby restaurants, hotels and shops for clues.
The British man and woman killed in Thailand did not know each other before the night they were killed, ITV News understands.
It is believed the pair were staying at the same accommodation, but only met at a beach party last night.
They were attacked and killed after they left the party on Koh Toa.
Police in Thailand are wanting to interview a British man in connection with the murder of two British tourists on the holiday island of Koh Tao, ITV News understands.
Police believe that the man may be a friend of one of the murdered Brits and it is thought he left the island by an early ferry and is heading for Bangkok.
A British woman found dead in Thailand checked into a hotel with friends three days earlier, ITV News understands.
Staff at Ocean View bungalows said the female victim arrived with three other women.
The male victim she was found with was staying in a different room at the resort, they added.
Police were at the hotel earlier but have now left.
Two British tourists found murdered on a beach on the Thai island of Koh Tao could have been targeted by robbers as they left an open air party, according to local media.
The bodies of a 23-year-old woman and 24-year-old man, from Great Yarmouth and Jersey respectively, were found 100 metres away from the scene of a beach party.
The Foreign Office is seeking more information from Thai authorities after two British tourists were murdered on the island of Koh Tao.
In a statement, the Foreign Office said:
We are aware of the death of two British nationals on September 15 on the island of Koh Tao in the Gulf of Thailand.
The embassy are urgently seeking information from the local authorities and consular staff stand ready to provide assistance to friends and family at this tragic time.
A murder investigation is underway after the bodies of two party-goers were found on a beach at an island resort in Thailand.
The pair, believed to be a British woman and an Irish man, were thought to have attended a beach party on Koh Tao - an area popular with tourists and scuba-divers.
Islanders have reportedly blocked off the local ferry dock to prevent any potential culprits leaving the island.
Police in Thailand have said they have no immediate suspects in mind for the murder of two British tourists on the holiday resort island of Koh Tao.
Thai police described the two as a 23-year-old woman from Great Yarmouth, Norfolk, and a 24-year-old man from Jersey.
The bodies were discovered on a beach early on Monday morning and a garden hoe was found bloodied nearby which police believe to be the murder weapon.
Local media reported that outraged residents of the island, which is home to about 2,000 people and relies on its tourist industry, had blockaded its piers to help police prevent the killers from escaping.
Thai police and rescue workers have secured the scene where the bodies of two British tourists were found dead earlier today.
The pair were found on a rocky beach near a popular beach resort on the island of Koh Tao with "gruesome" head injuries, police said.
Thai police believe they attended a beach party with about fifty others on the night of 14 September which went on until just before dawn today.