Two people were killed following a four-vehicle collision on the H-1 freeway near the Kaonohi Street overpass Thursday afternoon, the Honolulu Police Department said.

At 3:18 p.m., a 34-year-old man driving east on the freeway rear-ended another vehicle, which an 81-year-old woman was driving with a 85-year-old male passenger, HPD’s Traffic Division said in a news release.

The woman’s vehicle “spun out and traveled across multiple lanes of traffic, and was broadsided by a 22-year-old male motorist, who was also traveling eastbound,” police said.

The vehicle being driven by the 22-year-old then collided with a fourth vehicle driven by a 57-year-old woman.

The 85-year-old man and 81-year-old woman, who were both wearing seat belts at the time of the collision, were treated by Honolulu Emergency Medical Services paramedics and taken in critical condition to a hospital where they were pronounced dead.

Police said the 22-year-old man was taken to a hospital in serious condition.

The 34-year-old man refused a medical evaluation and transportation to a hospital, EMS said.

HPD said it does not suspect speed, drugs or alcohol were factors in the collision.

All lanes of H-1 eastbound near the Kaonohi Street overpass were closed and traffic was rerouted onto the Waimalu off-ramp. for several as emergency crews responded and police investigated.

There have been 30 traffic fatalities on Oahu this year, HPD reported, compared with 26 at this time last year.