Incident location, Long Island
What Happened
A 4-year-old child was critically injured Wednesday afternoon after a single-car crash on the Southern State Parkway in Nassau County sent the vehicle careening into a stand of trees, according to New York State Police. Lohud first reported the incident on the evening of June 18, 2026, citing information provided directly by State Police troopers.
The crash occurred at approximately 2 p.m. on Wednesday, June 17, 2026, when a westbound vehicle traveling on the Southern State Parkway veered off the roadway and struck trees near Exit 20, the Grand Avenue exit, in Nassau County. Troopers described it as a one-car crash, meaning no other vehicles were involved in the collision. The exact circumstances that caused the driver to lose control and leave the roadway have not been publicly disclosed and remain part of an ongoing investigation.
Both the driver and the 4-year-old child, who was riding as a passenger, were trapped inside the vehicle following the impact. Emergency responders worked at the scene to extricate both occupants from the car, according to Lohud’s report. The physical condition of the car following the tree strike was severe enough to require rescue personnel to remove the victims before medical treatment could be administered.
The 4-year-old child was transported to an area hospital with serious injuries and was listed in critical condition, troopers confirmed. The specific hospital was not identified in released information. As of the time of reporting, the medical status of the driver was not released by State Police, leaving the full extent of injuries to those inside the vehicle only partially known. No names of the driver or the child were publicly released.
The New York State Police are continuing to investigate the crash. Anyone with information that may assist in the investigation is urged to contact troopers at (631) 756-3300.
Location & Road Context
The crash took place on the westbound Southern State Parkway near Exit 20 (Grand Avenue) in Nassau County — a heavily traveled stretch of one of Long Island’s most iconic and historically significant parkways. The Southern State Parkway runs east-west across Nassau and Suffolk Counties and serves as a primary commuter and recreational corridor connecting communities from Valley Stream in the west to Heckscher State Park in the east.
According to Long Island Traffic’s incident database, the Southern State Parkway has recorded 626 incidents in our system, underscoring the frequency of dangerous situations on this road. In the days immediately surrounding this crash, the parkway saw a notable cluster of incidents: a minor crash on June 17, a moderate crash also on June 17, and a separate event in which a medical helicopter landed on the parkway for a serious wreck on the same afternoon — all of which point to an extraordinarily active and dangerous 24-hour period on this corridor. A prior report also confirmed that the accident investigation closed lanes on the Southern State Parkway as troopers worked the scene.
Investigation & Legal Proceedings
New York State Police have confirmed that an active investigation into the cause of the crash is underway. Troopers closed the westbound lanes of the Southern State Parkway for approximately four hours following the incident to allow investigators to document the scene, examine the vehicle, and gather evidence. The extended lane closure reflects the seriousness with which authorities are treating the crash, particularly given that a young child was left in critical condition.
As of the time this report was published, no charges have been filed and no additional information about the driver — including identity, age, hometown, or medical status — has been released by State Police. Lohud noted that the investigation remains open and that authorities have asked the public for assistance. Anyone with relevant information about the crash is asked to contact the New York State Police at (631) 756-3300.
Broader Impact
Single-vehicle crashes involving a vehicle leaving the roadway and striking fixed objects — such as the trees struck in this incident — account for a disproportionate share of serious injuries and fatalities on parkways across New York State. The presence of a very young child as a passenger makes this case especially sobering, and it serves as a stark reminder of the vulnerability of child passengers in high-speed roadway departures, regardless of whether safety restraints are in use. The outcome for the 4-year-old remains uncertain as investigators continue their work near Grand Avenue and the Southern State Parkway in Nassau County.