Moments later, they learned that a car had crashed into a tree nearby.
When deputies arrived at the location they found a woman inside the vehicle.
Investigators have determined that the crash and the shooting were connected, but they have not explained how.
BREAKING: @Fresnosheriff homicide detectives found a woman killed by gunfire just west of Fresno at about 7 a.m.— Corin Hoggard (@corinhoggard) May 6, 2018
They're investigating a possible connection to a Fresno police domestic violence investigation less than a mile away.
Stay tuned to @ABC30 AM Live for updates. pic.twitter.com/lOcdgmEMNV
Deputies found several shell casings in the area and do not have any suspects at this time.
If you know anything about the incident, you are asked to call the Fresno County Sheriff's Office.