Russian officials say the situation in Siberia is under control after reports that a 28-year-old lab technician may have died of plague raised concern. Authorities said post-mortem tests found no microorganisms related to her work and identified the cause of death as pneumonia of unknown origin.

Russian officials say the situation in Siberia is under control after reports that a 28-year-old lab technician may have died of plague raised concern. Authorities said post-mortem tests found no microorganisms related to her work and identified the cause of death as pneumonia of unknown origin.

Kremlin spokesman Dmitry Peskov urged the public to rely on official statements from Russia's consumer and health watchdog, Rospotrabendzor, rather than "rumors and speculation."