May Day: teargas and arrests in protests across Europe

Police and protesters have clashed, sometimes violently, in cities across Europe as tens of thousands of trade unionists, anti-capitalists and other demonstrators marched in traditional May Day rallies. The worst confrontations were in Paris, where riot police fired teargas and stingball grenades as a 40,000-strong crowd marched from Montparnasse station to Place d’Italie.