A California man was arrested on suspicion of driving under the influence after he slammed head-on into a group of 10 motorcyclists, killing five, the Associated Press reported.
Carlos Rodriguez Bobadilla, 36, was arrested because his breath smelled of alcohol. He is among six injured victims.
Bobadilla, who is from Mexico, is recovering from hand fractures at a San Diego hospital, Chicago's WGNtv reports.
The names of the death victims have not been released, the Associated Press reported.