"The SBU was able to prevent a series of 15 acts of terror [planned] for the eve and during the Euro soccer championship," he said.
"The Frenchman spoke negatively about his government's actions,” Mr Gritsak continuesd, “mass immigration, the spread of Islam and globalisation, and also talked about plans to carry out several terrorist attacks.”
However, French police are sceptical about the arrest, saying the suspect was unknown to them or the French intelligence services.