Firefighters work on the site of a bus crash on the outskirts of Uruapan, in the Mexican state of Michoacan. A bus carrying kindergarten children on a day trip to a crocodile farm in western Mexico crashed on Wednesday, killing at least eight people and injuring about 20, police said. The publicly operated minibus struck a building near a bend in the road in the state of Michoacan, but the cause of the accident was not immediately clear.