UPDATE: According to the Minnesota State Patrol, both the driver and the trooper have what are being described as minor injuries. The agency says the trooper was responding to a driving complaint. The Rochester Police Department is investigating the crash.

Alcohol was not involved in the crash, according to the State Patrol. The collision in which nearly two dozen people were hurt is still under investigation.

A 25-year-old crashed into a parked police car early Tuesday, causing a chain reaction that damaged other patrol vehicles and injured two people, including an officer, police say. Just after 1 a.m., police in three patrol cars had been providing traffic control for an officer in a fourth car,

An officer with the Salt Lake City Police Department suffered minor injuries after an alleged DUI driver crashed into a patrol car. That crash caused a chain reaction that damaged two other patrol cars.