A 13-year-old boy from Missouri died after being pulled out of a Disney resort swimming pool over the weekend.Officials with the Orange County Sheriff's Office said Anthony Johnson died Tuesday at an Orlando hospital. He had been swimming with his family Sunday evening at Disney's Pop Century Resort. The family lost sight of him, until a cousin spotted him at the bottom of the pool several minutes later.Deputies report that the boy's father performed CPR until paramedics arrived. He was taken to an Orlando area hospital, where he died.The family was visiting from Missouri.In a statement, Disney officials said they are saddened by the child's death and have reached out to his family to offer "care and assistance."The incident in under investigation.