At least eight people were killed and another two dozen injured after a tour bus crashed on a mountain road around 80 miles east of Los Angeles, CBS reports. Authorities say the bus, which originated in Tijuana, Mexico, collided with a truck and a sedan on State Route 38, reports the Los Angeles Times. "The information that we have is that the bus' brakes failed," says a spokesman for the tour company. It took hours to extricate all the injured passengers, at least six of whom are in critical condition. "It's really a mess up there," says a state transportation spokeswoman. The crash comes on the heels of another one in Boston that injured at least 42 students.