When the driver crashed the car into a tree, Thyne was pinned between the car door and the tree, WCYB reported.
The police department confirmed Thyne later succumbed to her injuries at a local hospital.
"She was a true hero and served this community," Drew told reporters, adding, "She is and will always be a valued member of the department."
The driver of the vehicle, 38-year-old Vernon Evander Green, was arrested shortly after the crash and charged with homicide, drug possession and attempting to evade and elude law enforcement, CNN reported.
A New Hampshire native, Thyne, 24, joined the department in 2018 after serving in the U.S. Navy. She was active in the Navy Reserves and is survived by her 2-year-old daughter, mother, stepfather, brother and partner, WCYB reported.
Support for the department and Thyne’s survivors flooded social media on Friday.