A 49-year-old moped rider died after he was struck by a commercial van that made an illegal left turn on Kapiolani Boulevard this morning, police said.

Positive identification of the moped rider is pending.

Police have opened a negligent homicide investigation of the deadly crash.

The collision occurred at approximately 6:40 a.m. near Pacifica Honolulu at 1009 Kapiolani Boulevard.

Lt. James Slayter of the Honolulu Police Department’s Traffic Division said a man operating a black 2014 Sanyang moped was traveling west on Kapiolani Boulevard in a contraflow lane.

A Kama’aina Termite and Pest Control van operated by a 36-year-old man also was traveling west in the second lane when he made an illegal left turn into the path of the moped and struck the rider, Slayter said.

There is a “no left turn” sign posted on Kapiolani Boulevard near the driveway of the Pacifica Honolulu building.

He sustained major head trauma and was unresponsive. The moped rider was taken in “extreme critical condition” to Queen’s Medical Center where he died.

Police said speed, alcohol or drugs do not appear to be factors in today’s crash.

He reminded drivers to be attentive on the roadways and obey posted traffic signs. “Follow the rules of the road, follow the rules of the signs. Just drive responsibly,” he said.

Emergency Medical Services initially reported the rider was wearing a helmet at the time of the crash. Slayter said he was not wearing one.

Police closed the eastbound lanes on Kapiolani Boulevard from Ward Avenue to Kamakee Street to conduct an investigation.

In an emailed statement, Kama’aina Termite and Pest Control said, “Our thoughts, prayers and sincerest condolences are with all involved. Kama’aina Termite and Pest Control will cooperate with authorities.”

This is the 23rd traffic-related fatality on Oahu compared to 19 at the same time last year.