The woman who was driving a sport utility vehicle when it plunged off a 100-foot cliff into the Pacific Ocean with her family aboard last month was drunk, the California Highway Patrol said on Friday.

The woman, Jennifer Hart, was killed in the Northern California crash, as were her wife, Sarah Hart, and at least three of their six adopted children. The other three children have not yet been accounted for.

According to toxicology tests, Jennifer Hart, 38, had a blood alcohol concentration of 0.102 percent, the Mendocino County Sheriff’s Office said in a statement on Friday. In California, it is illegal for drivers to have a level of 0.08 percent or higher.

The toxicology tests also found that Sarah Hart, 38, and two of their children had “a significant amount” of diphenhydramine — an ingredient commonly found in medicines like the allergy drug Benadryl that can cause drowsiness — in their systems, Capt. Bruce Carpenter of the California Highway Patrol said at a news conference on Friday.