Police in eastern Pakistan have smashed an illegal organ harvesting ring, arresting eight people for surgically removing kidneys from hundreds of patients for wealthy people needing a transplant, authorities said Monday.

The alleged gang leader, identified as “Dr Fawad,” is accused of conducting 328 operations on people to remove their kidney and selling them to clients for up to 10 million Pakistani rupees ($34,000) each, said Mohsin Naqvi, the chief minister of Pakistan’s Punjab province.

Fawad was allegedly assisted in the operations by an unnamed car mechanic who administered the anesthesia, Naqvi said.

The chief minister said the gang lured patients from hospitals and performed the operations privately in the region of Taxila, the city of Lahore and in Pakistan-administered Kashmir.