Tunis - One person was killed and 20 were hurt on Tuesday in clashes in the Tunisian town of Bizerte between police and street vendors angry at being moved from the downtown, residents and local media said.Hundreds of vendors hurled rocks and petrol bombs at the police, who responded with tear gas, Interior Ministry spokesman Lotfi Hidouri said. They also set fire to the market and burned tyres in the road.Three radio stations said a 70-old man died after inhaling tear gas but the Interior Ministry was unable to confirm this.