"The incident occurred onboard an aircraft heading from Sheremetyevo [a Moscow airport] to Volgograd at about 11:00 a.m. Moscow time Thursday. The passenger, a native of Azerbaijan born in 1973, refused to obey a flight attendant's instruction to fasten her seatbelt before the plane was to descend, locked herself in a toilet, and announced from there that she would blow up the plane," a Volgograd regional law enforcement source told Interfax.

The plane landed safely, and the woman was detained at the airport. Interfax