Police in China cordon off the scene after a knife-wielding passenger ran amok on this bus, killing four passengers and injuring 11 others.<br/> <br />The attack took place on Sunday night in the southwestern city of Chengdu.<br/> <br />State media said the suspect began hacking at passengers before he got off the bus and attacked people on the street.<br/> <br />Police then opened fire on the suspect and subdued him.<br/> <br />Several victims, including a 10-year-old girl, remain in critical condition at a local hospital.<br/> <br />According to local police reports, the suspect is a worker from a nearby county who told police he was having 'financial disputes' with his family.
