French Interior Minister Laurent Nunez ordered a suspension of stun grenades at high school protests after a teenager lost his hand in the northern city of Lens on Monday, saying a grenade was very likely the cause; 18 cases have been referred to the police inspectorate. The demonstrations, now in their third week, target crumbling school buildings, teacher shortages and underfunding, and have closed more than 500 schools ahead of next year's presidential election. Unions including the CGT (France's second-largest trade union federation) have backed further marches, while similar student and teacher unrest has appeared in Belgium, Portugal and Spain.