Estella Vitins, 70, is at Spectrum Hospital with serious injuries after being hit on I-96 in Crockery Township while she walking on the highway early Tuesday morning, according to deputies.

The Sparta woman, who suffers from dementia, was reported missing around 10 p.m. on Monday night after her husband said she did not return home.

Ottawa County Sheriff's deputies then received a call around 2 a.m. about an accident.

Lt. Mark Bennett with the Ottawa County Sheriff's Office said the investigation determined the woman, identified as Vitins, had gotten out of her vehicle on the eastbound lane of I-96 around mile marker five near Nunica and was walking on the shoulder of the highway when a driver hit her and kept going. Vitins was taken to the hospital with serious injuries.

"It was dark and that's a rather rural stretch of the highway," said Lt. Bennett.

The vehicle, a gray Jaguar, was located Tuesday morning at an apartment complex near 60th and Kalamazoo in Gaines Township after a viewer tip from Silent Observer.

The driver, identified as 47-year-old Duane Washington, was arrested Tuesday afternoon with failing to stop and identify a personal injury crash, a misdemeanor.

He was arraigned Wednesday on charges of failing to stop at the scene of an accident causing serious injury. Washington is a former professional basketball player who briefly played for the Washington Bullets and currently lives in Kent County. He is the brother of LA Lakers player Derek Fisher.

Vitins was going into surgery early Tuesday afternoon, according to her daughter.