Security tightened across Europe

The explosions in Brussels have resulted in heightened security at airports, train and bus stations, ports and other public places around Europe.

German police said patrols and checks have been stepped up across the country particularly at transport hubs and along the borders with Belgium, France, the Netherlands and Luxembourg.

Due to increased security measures there may be additional vehicle controls at the access roads to FRA. https://t.co/Sao0ZcF4AA— Fraport AG (@Airport_FRA) 22 mars 2016

Hundreds of flights and trains into the Belgian capital were cancelled. Brussels airport was to remain completely shut on Wednesday and checkpoints were increased on roads between France and Belgium.

All flights at #brusselsairport today are cancelled. Contact your airline for further instructions. Avoid the surroundings of the airport.— Brussels Airport (@BrusselsAirport) 22 mars 2016

French Interior Minister Bernard Cazeneuve said an extra 1,600 police are being deployed there at