French Prime Minister Manuel Valls warned Thursday that the European Union faced a host of dangers and could "fracture" in the months to come.

Valls told reporters he had come to the gathering of billionaires and political leaders in Davos to speak about "all the dangers which could lead to a fracturing of the European project, and not in a few years or decades, but in the next few months".

He cited terrorism, the refugee crisis and a possible British exit from the bloc among the dangers.