A 30-year-old moped rider who was critically injured in a collision with a sport utility vehicle in McCully Sunday has died.

Honolulu police said a Honda moped was traveling westbound on Lime Street just after 5:20 p.m. As the moped approached the Paani Street intersection, the rider disregarded a stop sign and broadsided a Mazda SUV traveling northbound on Paani Street, police said.

The moped rider sustained injuries to his head and body and was taken in critical condition to a hospital where he died Wednesday.

Police said he was not wearing a helmet at the time of the collision. The Honolulu Medical Examiner’s Office has yet to release the rider’s name.

The 50-year-old Mazda driver sustained injuries to his face and declined treatment. His passenger, a 45-year-old woman, also sustained injuries to her face and body. She was taken in good condition to a hospital.

This is the 23rd traffic-related fatality on Oahu so far this year. The same number of traffic deaths occurred on the island at the same time last year.

The moped crash was also one of three deadly crashes that occurred on Oahu over the Memorial Day holiday weekend.

A 19-year-old man identified as Thomas A. Chang of Honolulu died from injuries in a moped crash that occurred in Kaaawa just before 2 p.m. Sunday.

Chang was traveling southbound on Kamehameha Highway on a Honda moped with a group of about seven moped riders just before 2 p.m. Sunday. Police said the operator of a white-colored moped, for unknown reasons, may have applied the brakes, causing a rear-end collision.

As a result of the impact, Chang lost control and flipped over the handle bars. Police said he landed in the path of a Kia multi-purpose vehicle driven by a 61-year-old man traveling northbound.

Chang was taken in critical condition to a hospital where he later died. It’s unknown whether he was wearing a helmet at the time of the crash.

The next day, a 28-year-old man turned himself in at the Pearl City Police Station where he was arrested on suspicion of collisions involving death of serious bodily injury in the Kaaawa crash. He was released pending investigation.

On Monday, a 57-year-old semi-truck driver died at Campbell Industrial Park after he struck an unoccupied parked vehicle on Hanua Street at about 4:30 a.m. Police said the impact caused the semi-truck’s load to slide forward and crush the driver identified as Jimmy M. Takushi of Waipahu.

Speed, drugs, or alcohol were not factors in the three separate crashes.