A 19-year-old driver and two passengers were injured Monday night after the man fled a traffic stop in Holtsville, traveling as fast as 80 mph on the Long Island Expressway service road before flipping his sport utility vehicle as he attempted to avoid arrest, police said.

The driver, whose identity was not immediately released, suffered a leg injury, Suffolk County police said. His passengers suffered undisclosed minor injuries, police said.

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The driver of the BMW SUV was stopped on the westbound LIE at 7:49 p.m. after he approached a Suffolk highway patrol officer “at a high rate of speed” — and the officer, whose patrol car was ahead of the driver’s vehicle, initiated a traffic stop on the shoulder near Exit 62, Nicolls Road, police said.

The driver initially stopped, police said. But then, as the officer was approaching the vehicle, police said the driver sped off — exiting onto the westbound service road at Exit 62.

Police said the SUV was traveling at approximately 80 mph when the driver “swerved to avoid a tractor trailer” stopped on the left shoulder and two other vehicles that were in the left hand lane near Morris Avenue. The SUV flipped, causing significant damage to the vehicle and minor injuries to the passengers.

The driver was arrested and charged with unlawful fleeing of a police officer. He also was cited for speeding, police said.