North Klang OCPD Asst Comm Nurulhuda Mohd Salleh said the suspects are aged between 20 and 40 and were detained after the police raided the house on Friday (June 19).
"Acting on a tip-off, police personnel raided the house and seized four plastic bags filled with ketum water and seven bottles of cough medicine.
"One of the men arrested had a criminal record for drug-related offences," she said when contacted.
She added that the suspects have been remanded until Tuesday (June 23).
"We will investigate the matter further," ACP Nurulhuda said.
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