Police in Xiamen City, southeast China's Fujian Province, announced Friday that they had arrested 250 suspects implicated in 219 cases found during a month-long narcotics investigation.
Raids and arrests since late February have led to the seizure of 106 kilograms of controlled substances and 194 kg of raw production materials.
Of the 250 arrested, six were wanted for outstanding drug-related charges and seven were drug addicts caught abusing drugs at a construction site in Xiamen.
Xiamen Police said they would improve inter-department cooperation and push forward narcotics and dangerous drug investigations.