Serdang police chief Farid Ahmad said the six men, who are all housemates of the main suspect, were being questioned over the discovery of the body at a shoplot’s staircase.

“So far, statements from four witnesses, including the complainant, have been recorded to assist the investigation,” he said in a statement.

“We have also identified the main suspect, who is an Indian national.”

He said the 49-year-old victim, who worked as a self-employed technician, had resided in Malaysia for the past 19 years.

Farid added that police were also reviewing closed-circuit television footage from the scene to assist in investigations under Section 302 of the Penal Code for murder.

Members of the public with information on the case are urged to contact the nearest police station or the Serdang police headquarters at 03-8074 2222.