A homeless man was killed in north Napa Thursday night as he and a female companion were struck by a vehicle as they crossed Redwood Road, just west of Solano Avenue.

The name of the 61-year-old victim has not been released pending notification of his family, according to the county coroner's office. "We believe we know who the man is, but at this time we are not able to confirm his identity," Napa County Sheriff's Lt. Tom Commander said.

The man was pronounced dead at the scene.

The woman, Rapaula Rodden, 39, suffered multiple injuries and was taken by ambulance to Queen of the Valley Regional Medical Center.

Rodden was listed in stable condition Friday evening, according the a nursing supervisor at the Queen.

Daniel Palmer, 59, of Napa was westbound on Redwood Road when he came upon the pair crossing the street, Police Sgt. Paul Paniagua said. "The victims were not in a crosswalk. They were carrying some sacks."

Paniagua said it was not clear whether Palmer saw the couple and was unable to stop or didn't see them until his car struck them.

"They both were wearing dark clothing," he said. "The street lighting is adequate at that location because of the several street lights and businesses on that stretch of the road."

Paniagua said it does not appear that alcohol was a factor in the accident for the driver.

"We will have to wait for toxicology test results from the two pedestrians," he said.

This is the first traffic death in the city of Napa this year. Thursday's victim was the fourth person to die on Napa County roadways this year.

Calistoga residents Aaron Porter, 21, and Alexandra Finney, 17, were killed March 19 when the pickup they were traveling in was involved in a crash on Silverado Trail near Bale Lane.

Another fatal accident took place the following day. Jennifer Haden, 39, also of Calistoga and who was four months pregnant, died in a three-car crash in Yountville, on Highway 29 south of Madison Avenue.