The crash happened at about 10:15 p.m. on Monday, Dec. 27, on I-87 northbound in Ulster County.
Police said a trooper was in his patrol car in the Town of Ulster on the left shoulder investigating an unrelated crash near the Kingston exit when a 33-year-old Albany woman lost control of 2020 MINI Cooper in the left lane and struck the patrol car from behind.
The trooper was hospitalized for non-life-threatening injuries, state police said.
Authorities said two passengers in the MINI Cooper, a 36-year-old woman and a 64-year-old man from Florida, were also hospitalized with non-life-threatening injuries.
The investigation into the crash is ongoing.
State Police also issued a reminder to drivers "to slow down and move over when emergency and construction vehicles are working on the highway."
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