Six people died and many more were injured early Thursday morning when a Greyhound bus crashed on a California state highway just outside of Fresno. The bus, which swerved to avoid an overturned minivan, rammed into a concrete divider and then hit another car and a tree. Five passengers died at the scene; another was pronounced dead at a nearby hospital. It's unclear whether those who died were in the bus or the other two cars. A highway patrol spokesman told MSNBC that four passengers are also being treated for "major injuries." "I had just woke up and I heard a boom once, and a boom again and the next thing I know we were down this embankment," a passenger on the bus told KMPH-TV. "It was horrible."