A four-year-old Chicago boy is dead and two Rottweilers and a poodle have been euthanized .One or more of the dogs mauled the boy to death in his backyard on Sunday.

• 周日一名四岁的芝加哥男孩在他家后院遭到一只或更多只犬的攻击而死亡，两只罗特威尔犬及一只贵宾犬被实施安乐死。