Woman killed, man in serious condition when their car leaves roadway and strikes tree on Oahu.

A woman is dead after the car she was in crashed in Windward Oahu Wednesday night.

Honolulu police say at about 6:30 p.m., the car veered off Ahuimanu Road and hit a tree.

"The driver, a male in his 50s, was taken to Queen's in serious condition. The passenger, a female also in her 50s, was taken to the hospital in critical condition, where she later expired," an HPD spokesman said. "We're not looking at speed at this point. As far as impairment, we will be investigating that."

No other vehicles were involved in the crash.

UPDATE: The woman victim has been identified as Rachelle Ching.