A woman died this month after being bitten by a snake three times as she was taking a walk on rural property in the unincorporated Mendocino County community of Redwood Valley, officials say.

The City of Palos Verdes Estates is issuing a warning after someone was recently bitten by a rattlesnake.

The sheriff’s office stated that the preliminary cause of death was determined to be disseminated intravascular coagulopathy — a serious blood-clotting disorder — along with snake envenomation.