Two Hawaii island women have died after crashing their cars into rock walls on different sides of the island three days apart.

Christina K. Fujiyama, 25, died Sunday after she lost control of the car she was driving and hit a rock wall in Keaau. Fujiyama, of Keaau, was taken Hilo Medical Center, where she died.

The accident happened at 3:28 p.m. on 20th Avenue off Kaloli Drive in the Hawaiian Paradise Park subdivision.

Puna patrol officers said Fujiyama was driving a 1994 Acura four-door sedan east on 20th Avenue when she lost control and struck the wall. She was not wearing a seat belt and was thrown from the vehicle, police said.

Excessive speed was a factor in the crash, police said. Because it occurred in a private subdivision, the death is not counted toward the island’s official traffic fatality count.

Police ask anyone with information about the accident to call officer Clarence Acob at 961-2293.

A 90-year-old Kailua-Kona woman died after losing control of the car she was driving, crossing the center line on Mamalahoa Highway and hitting a stone wall, police said Monday.

The victim was identified as Jane K. Ota.

The crash happened at 2:30 p.m. Thursday on Mamalahoa Highway or Route 190 and the junction with Kalaoa Street in Kailua-Kona. Ota was driving a 1999 Ford Escort four-door sedan south between the 32- and 33-mile markers.

Police said as she approached the junction with Kalaoa Street, she lost control and veered across the centerline onto the northbound shoulder and struck a rock embankment, causing the vehicle to roll onto its roof. She died at Kona Community Hospital.

Witnesses are asked to call officer Justin Hooser at 326-4646, ext. 229.

This is the ninth traffic fatality this year in Hawaii County, compared with 21 at this time last year, police said.