A person was sent to the hospital with unspecified injuries after a crash on Academy Hill Road in Derby early Saturday.
The crash was reported at about 1:20 a.m.
The vehicle hit a utility pole, snapping it in half, before rolling over.
The driver was unconscious when firefighters arrived on the scene.
Specialized tools were used to free the driver from the vehicle.
The driver was taken to Yale-New Haven Hospital on a trauma alert.
Further details were not immediately available.
EMS crews and firefighters also responded to a serious crash overnight in Shelton.
That crash was reported at the intersection of Meadowlark Drive and Rolling Brook Lane.
It happened at about 1:40 a.m. Further details weren’t available Saturday morning.