SMYRNA, Del. — Authorities in Delaware have identified a woman who died Tuesday after her car collided with a school bus.

State police said in a statement Wednesday that the woman was 45-year-old Kelly A. Brandenburg of Smyrna, Delaware.

There were no children on the bus at the time. The bus driver was uninjured.

Police are continuing to investigate. The wreck occurred Tuesday at about 6 a.m. on Route 13 just north of Smyrna. The school bus was pulling onto 13 when it collided with Brandenburg’s Kia Spectra.

Police said Brandenburg was not properly restrained. She was flown to a nearby hospital where she was pronounced dead.