A woman was killed and her husband and son injured in a crash on Interstate 75 shortly before 2:30 a.m.
Chattanooga police said a 1997 Ford Explorer driven by Jesus Sandoval, 42, was traveling north to merge with I-24 west when the driver lost control on the wet road.
The Explorer spun and struck the guardrail twice. Maria Sandoval, 43, a rear-seat passenger, was thrown out of the vehicle.
She died at the local hospital.
Jesus Sandoval and his teenage son were treated and released.
The police news release said the family was returning home to Nebraska after vacationing with family in Florida.