Sleep-deprived driver tied to fatal bus crash

LOS ANGELES — A severely sleep-deprived driver and a bus company with a poor safety record were to blame for an Aug, 2, 2016, crash in California’s Central Valley that killed four passengers and injured 20 others, including the driver, federal safety investigators said Monday.

The National Transportation Safety Board said the driver had only slept about five hours over the 40 hours preceding the crash. There were no signs the driver tried to stop or steer back on the highway.

The NTSB also cited inadequate oversight by the federal agency regulating bus safety that allowed Fresno-based Autobuses Coordinados USA Inc. to continue operating despite a poor safety record.