Overview
- The collision occurred around 12:40 a.m. on the northbound side as the on-duty officer assisted a motorist.
- Emergency crews attempted lifesaving measures, but the officer died and authorities have not released the name.
- Massachusetts State Police are leading the investigation with assistance from Uxbridge Police.
- Route 146 northbound is expected to remain closed for several hours as investigators process the scene.
- Officials have not confirmed how many vehicles were involved, and icy conditions from overnight freezing rain were reported in the area.