At least one person was sent to Peconic Bay Medical Center after a head-on collision between a police vehicle and an SUV on Route 25. Photo: Peter Blasl

A head-on collision involving a Riverhead police vehicle this afternoon led emergency responders to administer a heroin overdose reversal drug to a person involved in the accident and also to the arrest of one man, according to radio reports.

A police sergeant’s SUV was westbound on Route 25 when it was involved in a head-on collision with a black SUV on the curve near Snowflake Ice Cream Wednesday afternoon.

Riverhead Volunteer Ambulance Corps administered Narcan, a heroin overdose reversal drug, to a 36-year-old man who was transported to PBMC after the accident, according to police radio transmission. He was found lying in the roadway after the collision, breathing but not responsive, according to an EMS radio report.

The police sergeant was not seriously injured in the crash, which occurred just before 4:30 p.m. The officer was walking and talking at the scene.

One man involved in the accident was placed under arrest.

Police have closed Route 25 between Mill Road and Raynor Avenue while the accident is investigated.

Check back for updates.

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Katie, winner of the 2016 James Murphy Cub Reporter of the Year award from the L.I. Press Club, is a co-publisher of RiverheadLOCAL. A Riverhead native, she is a 2014 graduate of Stony Brook University. Email Katie