More than 40 metro stations in Paris will be closed.Authorities have also said face-covering masks will not be allowed at the demonstrations.France’s interior minister has warned of a “very high risk” of disorder over the weekend.Two weeks ago, widespread unrest broke out in cities and towns across France as demonstrations against the cost of living and conditions in schools descended into large-scale looting and riots.Since then, French authorities have sought to clamp down on violent protests, but last weekend saw further demonstrations across the country, including intermittent clashes with the police.Alain Di Crescenzo, president of France’s Chamber of Commerce, said businesses were worried.“Shopkeepers can’t wait for Saturday to be over,” Di Crescenzo told broadcaster France Inter.Halloween “is not helping matters”, he said, “because we’re going to have people wearing masks”.