A tractor-trailer struck a cruiser parked on the side of I-291 west on Thursday.
Police said a trooper was stopped behind another vehicle in the right shoulder of Bissell Bridge in South Windsor around 3:23 p.m.
The people inside the car were stopped in the right shoulder and having an argument. The trooper parked his cruiser behind theirs and walked up to investigate.
While the trooper was outside of his vehicle speaking to the people, a tractor-trailer struck the stationary cruiser.
No injuries were reported.
"Connecticut's Move Over Law requires motorists to reduce their speed to a reasonable level below the posted speed limit and (when traveling in the adjacent lane) move over one lane, if safe to do so when approaching stationary first responders," state troopers said.
