A top official at the World Health Organization said the U.N. health agency assumes the coronavirus outbreak in North Korea is “getting worse, not better,” despite the secretive country’s recent claims that it is slowing down.

At a news briefing on Wednesday, WHO’s emergencies chief Dr. Mike Ryan appealed to North Korean authorities for more information about the virus outbreak there, saying, “We have real issues in getting access to the raw data and to the actual situation on the ground.”

He said WHO has not received any privileged information about the epidemic — unlike in typical outbreaks when countries may share more sensitive data with the organization so it can evaluate the public health risks for the global community.