Johor acting police chief Hoo Chuan Huat said the suspects, aged between 26 and 29, comprise two Malaysian men and a woman. No weapons were found during the arrests.

One of the male suspects has a criminal record, Bernama reported him as saying at the state police headquarters today.

Hoo said police are still determining the motive for the murder of the 27-year-old victim, who worked at a warehouse in Singapore.

They are also looking into possible links to underworld activities or organised crime.

He said another man, aged 27, who was shot during the incident, is a friend of the victim.

Yesterday, Iskandar Puteri police chief M Kumarasan said the department received a report of the 11pm shooting from a 27-year-old woman.

He said the victim was pronounced dead at the scene.

The case is being investigated under Section 302 of the Penal Code for murder.