German airline Lufthansa said a flight suspended in Minsk on Monday due to a security alert had taken off for Frankfurt after renewed checks, with all passengers on board. "The flight took off 10 minutes ago," an airline spokesman told AFP at about 1330 GMT, one day after the forced landing of a Ryanair flight in Belarus. "All passengers were on board as planned." Lufthansa said all luggage and freight had been removed from the aircraft, in which there were 51 people including five crew members, for fresh security checks after Belarusian authorities said they had received a "security warning". "We regret the inconvenience for the passengers but the security of our passengers, crew and the plane take top priority at Lufthansa," the spokesman said. Soon after Lufthansa announced the flight's suspension, Minsk airport said on its Telegram channel that "all necessary measures" to check the plane and its passengers had been completed. "The information about a terror attack, that was received on the airport's email, wasn't substantiated," it said. "The plane is being readied for take-off, luggage is being loaded, boarding has been announced for Lufthansa flight LH1487 Minsk-Frankfurt." The security alert came one day after a Ryanair flight from Athens to Vilnius carrying dissident journalist Roman Protasevich was diverted while in Belarusian airspace over a supposed bomb threat. Accompanied by a Belarusian fighter jet on the orders of strongman Alexander Lukashenko, the plane landed in Minsk where Protasevich, a 26-year-old who had been living in Lithuania, was arrested along with his Russian girlfriend. dlc/dl