Five people were left with non-life-threatening injuries, according to Greece's state broadcaster ERT.
Related stories
Joshua Wong, Hong Kong pro-democracy poster boy facing longer prison stint
Authorities say multiple grizzlies may have attacked mother and daughter found dead
France’s Riots Were Fueled by an ‘Ultra Left’ Faction That Lives Off-the-Grid
The Billions of Dollars in Orders Complicating an End to U.S. Aid to Israel
Hubert Aiwanger, prominent German politician, found dead in Berlin hotel
How the Mississippi Senate Race Became a Nail-Biter