A hospital in Nebraska is investigating the cause of a small fire in an operating room that burned a patient.

Because of the fire, the federal agency that administers Medicare will audit the hospital's procedures.

Chief medical officer Steve Smith said Wednesday that the Feb. 3 fire at Nebraska Medical Center in Omaha is believed to have started when an electrical cauterizing tool ignited alcohol vapors used for sterilization.

A patient received minor burns to the upper back and neck and was hospitalized overnight as a precaution.