The public has been urged to help police with information on a viral video showing a man repeatedly caning another person with a bamboo stick.
Inspector-General of Police Tan Sri Khalid Abu Bakar said police have yet to identify the victim or the perpetrators in the video.
"Whoever knows them or has information, please come forward and inform us," he told a press conference Tuesday.
Khalid was commenting on a 51-second video clip uploaded by Parti Cinta Malaysia (PCM) vice-president Datuk Huan Cheng Guan Monday.
The video shows the victim backed against the corner of a bedroom, pleading for the caning to stop.
The attacker is seen taking off his sling messenger bag to repeatedly cane the victim on the legs.
Another man, seen in the video looking on from the bedroom door, appears to make no effort to stop the violent beating.
It is not known what caused the incident or when it took place.
The video has been shared more than 7,000 times on Facebook and has received over 900 comments.
Many netizens have urged police to investigate the beating.