REDDING, Calif. — A tour bus drifted off a northern California interstate and crashed onto its roof, killing a 33-year-old man, leaving six others with critical or serious injuries, and sending two dozen people to hospitals with mainly minor wounds, authorities said.

The crash Sunday morning was the second in the day for the bus. California Highway Patrol Officer Jeff Borgen said the same vehicle struck a Denny’s restaurant in Red Bluff, about 50 miles south, but no one was hurt.

The bus was en route from Los Angeles to Pasco, Wash., when it went off Interstate 5 at about 7:30 a.m., Borgen said. It rolled over and came to rest upside-down on a frontage road.

Police said the man who died was from the Fresno area city of Parlier, but his name was being withheld until relatives could be notified.