DARIEN — Police said two people were arrested Thursday afternoon following a pursuit on Interstate 95 that began when a witness thought she saw a passenger holding a gun to the driver’s head.

Connecticut State Police notified police in Darien about the report around 2:20 p.m., according to Capt. Jeremiah Marron Jr.

The woman told police the vehicle, traveling south on I-95 appeared to have fresh damage to the exterior, Marron said. When she pulled alongside the car, she “observed that it was occupied by several male passengers and it appeared that one of them was holding a gun to the head of the female operator,” Marron said.

The damaged car was spotted pulling off the highway at Exit 11 in Darien.

A Darien police officer spotted the car getting back on the highway at the northbound Exit 11 on-ramp.

The officer attempted to pull the car over near Exit 13, where the car “pulled to the right shoulder of I-95 but then increased its speed in an attempt to elude the officer,” Marron said.

State police located the car on a surveillance camera at Exit 17 in Westport, where the driver had pulled off the highway and the occupants were attempting to run away, Marron said.

“Darien officers along with Darien detectives and Connecticut state troopers arrived on scene and took all parties into custody,” Marron said.

Police did not find a firearm, he said.

The driver, 41-year-old Danielle Green, of Waterbury, was charged with engaging police in a pursuit, driving while intoxicated and operating a motor vehicle under a suspended license.

One of the passengers, 33-year-old Jonathan Neves, also of Waterbury, was charged with possession of narcotics and drug paraphernalia.

Three other passengers in the car were not charged and were released by police.

Police from Westport, Norwalk and the Department of Motor Vehicles were also involved in the case, Marron said.