According to Bloomberg, to comply with new regulations issued by the Monetary Authority of Singapore (MAS), Singapore’s central bank, cryptocurrency ATM operators in the country were forced to shut down their operations on Tuesday.

The new clampdown on cryptocurrency ATMs sparked several reactions from the city’s cryptocurrency operators, with Daenerys & Co saying it was “surprised” and canceling its ATM service on Tuesday evening. Its main competitor, Deodi, switched off its ATM network and sent staff to remove its crypto ATMs.

The move is part of a broader effort by the Singaporean watchdog to regulate advertising cryptocurrency to the public. On Monday, the central bank released new guidance that bans crypto firms from advertising their services in public places, websites and social networks.

Singapore’s souring on crypto, however, is more of a surprise. Coincub, a fintech startup based in the city-state, named Singapore the most crypto-friendly country in the world in December, owing to the city’s “good legislative environment” and “high rate of cryptocurrency adoption.” However, the legislative climate in the city-state appears to be cloudier right now.

Related: UK advertiser ASA continues crypto ad banning spree

Cointelegraph reached out to the MAS for more information but did not receive a response as of publishing time. This article will be updated if new details emerge.

The clampdown in Singapore came soon after similar advertising limitations were enacted in Spain and the United Kingdom. On Monday, the Spanish government required crypto businesses to submit ad campaigns for regulatory