A local fishmonger is considered the main suspect by police after the fatal stabbing of two British students in a reported bar row in Borneo, a local reporter has told ITV News.
Sharon Ling from Malaysian newspaper The Star said the 23-year-old man was arrested along with a 29-year-old mechanic and two other unemployed men.
She said all four would be remanded for seven days following the early morning killing of Neil Dalton and Aidan Brunger from Newcastle University.
Ms Ling said the island was in shock at the deaths, which she said occurred in an area generally considered to be safe.
More top news
A serious case review into the exploitation of young people in Oxford has documented a catalogue of failures by police and social services.
Finance chiefs at Barclays say profits are up - but as a string of past problems plague the bank, can it get back to its quaker roots?
Villarrica - one of Chile's most active volcanoes - has erupted, forcing the evacuation of nearby communities.