Sochi International Airport was evacuated after it received an e-mail containing a bomb threat.
Rostov airport received an anonymous message about the threat of an explosion, which resulted in the evacuation of the terminal.
A Windrose Airline flight from Kiev to Sharm El Sheikh was forced to divert to Odessa after an anonymous phone call was received about a bomb on the flight.
Flights were suspended at Glasgow Airport after a suspicious note was found on a flight that had arrived from Gatwick Airport.
Juan Santamaría International Airport was put on alert because it had received a threat indicating that a bomb was in a luggage from a plane arriving from Panama.
Kyiv International Airport was evacuated due to an anonymous bomb threat sent by post.
Kharkiv Airport was evacuated due to information received by police indicating a bomb threat.
A Pakistan International Airlines flight from Karachi had to make an emergency landing at Bacha Khan Airport after the captain allegedly received a bomb threat relating to the cargo section of the plane.
A Scoot flight from Changi to Hat Yai, Thailand, was forced to return to Changi Airport after a bomb threat was reported.
A flight from Domodedovo airport to Tokyo was evacuated before take-off after it received threats of a bomb on board. The threats were allegedly made by Ukrainian militants.