Two children, ages 12 and 13, were shot after throwing snowballs at passing cars in Milwaukee, Wisconsin, police said. The pair was hurling snowballs at passing cars with a group of children on Saturday evening, Milwaukee police said in a series of tweets. One of the snowballs struck a white Toyota, and the driver of the car shot at the children, police said.Police found the 12-year-old girl and the 13-year-old boy minutes apart. Both of their injuries were non-life-threatening. Both children are being treated at a local hospital, police said.