Privacy update — September 18, 2026: Identifying details have been removed under our victim privacy policy.
What Happened
A three-vehicle crash at Route 347 and Route 111 in Hauppauge sent three people to Stony Brook University Hospital on the morning of September 5, 2026, after a Brentwood driver allegedly made an illegal left turn into oncoming westbound traffic. Suffolk County Police Fourth Squad detectives are investigating, according to Long Island Life & Politics.
A 45-year-old Brentwood woman was driving a 2008 Acura SUV eastbound on Route 347 at 9:46 a.m. when she allegedly attempted a left turn northbound onto Route 111. The Acura struck a 2019 Toyota SUV traveling westbound in the left lane of Route 347. The force of that impact pushed the Toyota into a 2020 Hyundai sedan traveling westbound to its right.
The passenger in the Toyota, a 68-year-old Lake Grove woman, took the most severe blow. She was transported to Stony Brook University Hospital for serious injuries. Her husband, 68, also of Lake Grove and the Toyota’s driver, was transported to the same hospital for non-life-threatening injuries. The Brentwood driver was taken to Stony Brook as well, for minor injuries.
The driver of the Hyundai struck in the chain reaction, a 29-year-old Lake Grove resident, was not injured. All three vehicles were impounded after the crash for a safety check, as reported by Long Island Life & Politics.
Location & Road Context
The crash occurred at the intersection of Route 347 and Route 111 in Hauppauge, a heavily traveled commercial corridor in central Suffolk County. Route 347, also called Nesconset Highway, carries significant two-way traffic through Hauppauge’s industrial and retail district; the Route 111 junction is an unsignalized or complex turning point that sees frequent crossing conflicts between eastbound and westbound flows.
Recent related incidents at this stretch include a prior multi-vehicle crash on Route 347 in Hauppauge that closed the roadway and a separate serious-injury crash reported the same day.
Investigation & Legal Proceedings
Suffolk County Police Fourth Squad detectives issued the Brentwood driver several summonses following the crash, including one for improper turn. The Fourth Squad is asking anyone with information on the crash to contact detectives at 631-854-8452.
No arrests were announced as of the date of publication. The vehicle impoundments for safety checks are standard procedure in multi-injury crashes and may inform the ongoing Fourth Squad investigation.