Member of the European Parliament, Johan Van Overtveldt, has insisted that governments should prohibit cryptocurrencies like bitcoin. His call comes amid a crisis sparked by the failure of several banking institutions, including two crypto-friendly banks in the U.S.

“Another lesson to be learned from the current banking commotion. Enforce a strict ban on cryptocurrencies,” the lawmaker, who has previously praised blockchain technology, tweeted on Friday. “Speculative poison and no economic or social added value. If a government bans drugs, it should also ban cryptos,” he argued.