Clash after migrant protest near Austria

(ANSA) - Bolzano, April 4 - Austrian police opened a formal investigation Monday into events surrounding clashes that took place following a protest march over EU migration policies near the country's border at the Brenner Pass on Sunday, ANSA sources said.
    A 40-year-old man from Asti was taken into custody for resisting a public official.
    Clashes broke out after the march, when about 30 people tried to block a train and threw rocks and flares at Austrian police, injuring three officers.
    About 30 people, both protesters and police, suffered irritation from pepper spray.