Iskandar Puteri police chief M Kumarasan said the 22-year-old suspect threw a motorcycle rim at the officer before punching him in the face at the complaints counter.

The suspect was arrested after a struggle with the officers at the station.

“A check revealed that the suspect has no criminal record.

“He appeared to be mentally unstable and was referred to Sultanah Aminah Hospital here for further examination,” Kumarasan said in a statement today.

He said police seized a sling bag, containing a knife and a motorcycle rim, from the man.

The case is being investigated for using criminal force to deter a public servant from carrying out their duties under Section 353 of the Penal Code, and disorderly conduct in a police station under Section 90 of the Police Act 1967.

It is also being investigated under Section 6(1) of the Corrosive and Explosive Substances and Dangerous Weapons Act 1958 for the possession of offensive weapons in public.