Gun attacks, remotely detonated bombs and even drones carrying explosives and chemical weapons: These are just a few of the terrorist threats French authorities are preparing for at the Euro 2016 football championship, which gets underway on June 7.
CNN: France braces for intense security around Euro 2016 championship

A video grab taken from an undated footage made available on the Ukrainian SBU security service' official website on June 6, 2016 allegedly shows security officers detaining an unidentified French national at the border with Poland.