What Happened
One person suffered serious injuries in a three-car crash at the intersection of Route 347 and Route 111 in Smithtown on Saturday morning, September 7, 2026, according to the Smithtown Fire Department. The collision was reported just before 10 a.m.
Firefighters confirmed that at least one person was trapped inside a vehicle following the impact, according to News 12 Long Island. Emergency crews worked to free the victim from the wreckage before medical transport could proceed.
All three people involved in the crash were taken to a hospital for treatment, per News 12 Long Island. Officials confirmed one of the three victims sustained serious injuries. No names or ages were released.
The cause of the crash remains under investigation, according to officials.
Location & Road Context
Route 347 and Route 111 is a heavily traveled commercial intersection in central Smithtown, carrying significant east-west and north-south traffic volumes through Suffolk County’s interior. The intersection sees frequent stop-and-go congestion, particularly on weekend mornings when local shopping traffic mixes with commuter flow. For current conditions on this stretch, see the Long Island accidents page.
Smithtown has seen other recent road incidents in the area, including an overnight ramp closure at the Northern State Parkway and State Route 454 interchange in late August 2026.
Investigation & Legal Proceedings
No charges have been filed and no arrests have been announced as of the time of reporting. The cause of the three-car collision remains under investigation by authorities. No further details on the investigative lead agency were provided in initial reports from News 12 Long Island.