Here is a list of fatal bus crashes across the nation:
— April 10, 2014: 10 people were killed when a FedEx truck veered across Interstate 5 near Orland and crashed into a bus carrying high school students from Los Angeles.
— March 12, 2011: A bus returning to New York City from a casino overturned on a highway and was sliced in half by the support pole for a large sign, killing 13 and injuring 19.
— July 22, 2010: Six people died and 20 were injured when a Greyhound bus en route to Los Angeles slammed into an overturned SUV on a highway in Fresno.
— Sept. 23, 2005: A bus ferrying nursing home residents away from Hurricane Rita caught fire and exploded while stuck on a gridlocked highway south of Dallas, killing 23 people.
— Oct. 9, 2004: A bus run by a mom-and-pop tour operator careened off an interstate in Marion, Ark., and overturned, killing 14 Chicago-area travelers on their way to a Mississippi casino and injuring 16.
— May 9, 1999: A bus heading to a casino in Bay St. Louis, Miss., ran off a highway on Mother's Day, killing 22 people. Investigators said the driver was impaired by severe medical conditions and use of marijuana and an antihistamine.
— July 31, 1991: A chartered school bus with 45 Girl Scouts and their adult chaperones was traveling with defective brakes near Palm Springs. The bus sped down a steep road, tumbled down a hillside and smashed into a boulder-strewn gully, killing seven people and injuring 47.
— Sept. 21, 1989: A school bus collided with a soft drink truck and fell into a water-filled pit near Mission, Texas. Twenty-one students were killed and 60 injured.
— May 14, 1988: A church bus returning from an amusement park collided head-on with a pickup near Carrollton, Ky., killing 24 children and three adults on the bus.
— May 30, 1986: A speeding Starline Sightseeing Tours coach crashed in a California canyon, killing 21 passengers.
— Feb. 18, 1981: A commuter bus crashed through a guardrail near Quantico, Va., and down an 80-foot embankment into a creek, killing 11 people and injuring 13.
— June 5, 1980: A tour bus carrying mostly senior citizens from Dallas to Branson, Mo., plunged into a 40-foot ravine near Jasper, Ark., killing 20 people and injuring 13.
— May 21, 1976: A bus carrying students from the Yuba City High School choir plunged off a freeway ramp near Martinez, killing 28 students and a teacher in the deadliest bus accident in U.S. history.
— Feb. 28, 1958: A bus carrying 48 elementary and high school students went off the road in Prestonsburg, Ky., plunged down an embankment and into swollen river waters, where it was swept downstream and submerged, killing 27.
The Associated Press contributed to this report.