"An anonymous individual informed us that an explosive device was located in the airport building at about 8:00 p.m. [17:00 GMT]. Special service agents were dispatched to the scene. Passengers and airport staff were evacuated and the building was cordoned off," Novitski said.
Currently, police officers, rescuers and bomb disposal technicians are working at the scene. Several departure and arrival flights have been delayed due to the incident.
A similar incident happened at Australia's Brisbane International Airport earlier this year. In February, there were reports of a man being armed with knives, and authorities declared a bomb threat.