The Guangdong province’s Development and Reform Commission has reportedly busted an illegal crypto mining farm secretly operating in an electric vehicle charging station.

The secret crypto mining farm was busted in the city of Guangzhou, where law enforcement agencies have constantly been making inspections around cities to enforce and eradicate any form of mining operations in the region, reported a local publication.

The covert mining operation used over 190 crypto mining machines estimated to be worth 5 million yuan ($7,91,450), which were seized on the spot. The authorities claimed that even though mining operations consume a lot of energy, they remained hidden from the authorities because of the high power consumption of the charging station they were operating in.

The mining operations were reportedly being carried out in a closed-door location with a guard at the gate along with fences and walls to hide it from plain sight. The mining farm was operational for over 1,000 hours and had consumed more than 90,000 kilowatt-hours of electricity.

Related: China’s share in Bitcoin transactions declined 80% post crackdown: PBoC

The authorities busted the crypto mining operations after examining the energy consumption of the charging station, which revealed discrepancies in the electricity consumption. Similarly, Jieyang City seized 916 mining machines in February.

The Beijing government issued an outright ban on crypto mining operations throughout the country last year, citing their carbon emission goals and high electricity consumption by the crypto mining operations. The decision led to the majority of mining farms and industrial crypto mining operations to either shut or migrate to other nations.

The authorities in various provinces of China have since then carried out state and city level inspections to wipe out even the smallest home-based mining operations. China, which contributed more than 60% of the Bitcoin (BTC) network’s hash power prior to the crackdown, currently has nearly zero shares in the global Bitcoin mining operations.