Air and train transportation slowed down after the explosion in Europe

After the explosion in Europe, air and train transportation has been slowed down: According to Brussels' official's official twitter account, the airport has been evacuated and travelers must stay away from the airport. According to the Belgian TV RTL report, the flights expected to arrive in Brussels this morning were directed to Liege airport in the east of the country.
Security measures have been increased at Paris airports. The airport's operating company, Aeroports de Paris, announced on the official website that delays in flights could be expected.
According to official accounts on Twitter, the high-speed train Thalys, which operates between Paris, Brussels and Amsterdam, operates normally, while Eurostar, which operates between Paris, London and Brussels, operates normally. Eurostar said that calls at checkpoints could take longer.