North Korea quarantined the Russian Embassy for one week after the departure of a Russian military delegation last Thursday, an embassy representative told NK News, raising questions about Pyongyang’s current COVID-19 policies and the possibility the visits were conducted inside a bubble.

“After [the] Russian delegation left, our Embassy was put in quarantine for 7 days,” an unnamed representative from the Russian Embassy in Pyongyang said via email on Friday.

“We have no any symptoms of the disease, so now we can move freely,” they added, indicating the quarantine period lapsed a week after defense minister Sergei Shoigu