Officer Brendon Gallagher survived the stabbing, but was critically hurt Sunday when a suspect crashed into his vehicle, officials said.

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A police helicopter landed near the crash site between Exits 55 and 56 and took the officer to a hospital, police said.

A Suffolk County police officer was involved in a crash in Brentwood on Sunday evening. It happened on the Long Island Expressway near Exit 55 just after 6 p.m. First responders quickly transported the injured officer via helicopter to an area hospital for treatment of serious physical injuries.