The two Newcastle University medical students stabbed to death on Borneo had been due to finish their training at the local hospital on Friday, according to local police.
Fourth-year students Neil Dalton and Aidan Brunger, both 22, were on the Malaysian part of the island on attachment to a hospital in Kuching.
Deputy police commissioner Datuk Dr Chai Khin Chung told the Malaysian State News Agency Bernama that the fight in which they were killed broke out after an argument in a bar over the students being too noisy.
He reportedly confirmed four men remain in custody after the 4.15am attack in the Jalan Padungan area of Kuching in the western province of Sarawak.
More top news
Gusty winds and torrential rain in any thunderstorms. Most at risk across the southern half of the UK.
Donald Trump said on Saturday that conversations about a potential summit were ‘going along very well’.
Mercedes boss Toto Wolff has suggested the FIA have thrown his team 'under the bus' after deciding not to penalise Ferrari.