Messaging app WhatsApp has been blocked for more than 100 million users in Brazil.
The app was shut down for 48 hours after officials at the company failed to respond to two separate court orders.
The judge ordered cell phone operators to block WhatsApp on Thursday and Friday.
WhatsApp had “failed to cooperate in a criminal investigation,” the judge ruled. The temporary suspension was “a penalty for not complying.”
WhatsApp co-founder Jan Koum tweeted a link to an article stating that nine out of 10 Brazilian doctors talk to their patients using WhatsApp, and added to his tweet, “sadly not right now.”
Mark Zuckerberg said it was a “sad day” in Brazil and then posted a message on Facebook that attacked the judge’s decision.
“I am stunned that our efforts to protect people’s data would result in such an extreme decision,” he said.
Facebook, whose Messenger app is still availble in Brazil, is urging people in Brazil to complain about the temporary halt in service.
WhatsApp, while popular in the country, has been called “illegal” by some lawmakers. They believe the app amounts to an unregulated telephone service.