A drug trafficking operation was dismantled on Friday in the Laveu district of Liège, the city public prosecutor's office said on Saturday.
Investigators found four men in their twenties living in shared accommodation at an address in the district, which had been previously identified as a place where drugs were being sold.
The individuals, all of whom were regular drug users, were found to be in possession of various narcotics, including LSD, ketamine, ecstasy (MDMA), and various other amphetamines. Cannabis was also being grown in one of the bedrooms.
Precision scales, order notes and other evidence of trafficking were also discovered on the premises.
Upon their arrest, three of the men confessed to selling drugs for just under a year. The fourth said he was only a consumer.

