More than 30 people were arrested and a large amount of drugs seized when Malaysian police raided a notorious nightclub in Kuala Lumpur for the fourth time this year on the early hours of Friday.

Despite many raids by various enforcement agencies, the entertainment outlet in Dang Wangi continued illicit activity such as selling methamphetamine in drinks, rolled cannabis cigarettes, or ketamine, the Sin Chew Daily (Malaysia) reported.

Officers raided the club between 2.30am and 4.30am on September 28 and checked “suspicious” vehicles in a nearby carpark. They found 181 bottles of iced lemon tea and blackcurrant drinks, as well as 408 packets of drink mixtures, all of which contained methamphetamine.

They also recovered around 60 rolled cannabis cigarettes, a packet of ketamine of 243 grams and a 0.84kg sachet of methamphetamine along with the drug-laced beverages.

Drugs seized during the raid were worth an estimated 23 million ringgit (US$55,593).

The police arrested 34 local men and women aged between 16 and 54 for allegedly using taking illegal drugs after “rapid” drug-tests registered a positive result. Those arrested included two alleged members of a drug syndicate.

Meanwhile, 56 foreigners, including seven Bangladeshi men and three Indonesian women aged between 21 and 30, were detained after they failed to produce proper travel documents.

Seri Mohmad Salleh, director of Bukit Aman Narcotics Criminal Investigation Department, said police had raided the entertainment outlet three times between February and September 14.

Inquiries suggested that the illegal business was too lucrative for the drug syndicate to give up. Cannabis cigarettes, for instance, were offered at 60 ringgit each, he alleged.