China has executed 11 members of the notorious Ming family criminal gang, who ran mafia-like scam centers in Myanmar and killed workers who tried to escape, Chinese state media reported on Thursday.

The Ming family was one of the so-called four families of northern Myanmar — crime syndicates accused of running hundreds of compounds dealing in internet fraud, prostitution and drug production, and whose members held prominent positions in the local government and militia aligned with Myanmar’s ruling junta.

The 11 people executed were sentenced to death in September after being found guilty of crimes including homicide, illegal detention, and fraud, Xinhua news agency reported.