UPDATE: 9:45 a.m.

Honolulu police arrested a 19-year-old man on suspicion of negligent homicide in connection with a two-vehicle collision on Oahu’s North Shore late Thursday.

Police said the 19-year-old motorist was traveling westbound on Kamehameha Highway when the vehicle crossed the yellow double line and struck a vehicle operated by a 65-year-old man at about 11:20 p.m

The 65-year-old man was pronounced dead at the scene. His passenger, a 65-year-old woman, was taken in serious condition to a hospital.

Police said the 19-year-old motorist was also taken in serious condition to a hospital. Upon arrival, his condition improved to good condition.

Police arrested the 19-year-old man on suspicion of second-degree negligent homicide and first-degree negligent injury.

Police said speed was a factor in the crash. It’s unknown whether drugs or alcohol were factors.

This is the 50th traffic-related fatality on Oahu compared to 42 at the same time last year.

Previous coverage:

A man died and two others were injured in a head-on collision on Oahu’s North Shore, according to Honolulu Emergency Medical Services.

Honolulu police and EMS responded to the area of Kamehameha Highway and Ashley Road at about 12:30 a.m. today. A man described to be in his mid-60s was pronounced dead at the scene.

Paramedics treated a 55-year-old woman and took her to a hospital in critical but stable condition. EMS also treated and took a 19-year-old man to a hospital in serious condition.

This is a breaking news story that will be updated when additional information becomes available.