BILLERICA (CBS) – A Billerica police officer was hurt early Tuesday morning when his cruiser was hit by a suspected drunk driver.

Officer Daniel Duggan was sitting in his cruiser working a construction detail around 2 a.m. on Route 3 north near the Chelmsford line when another car rear-ended his vehicle.

That driver, Jeffrey Walsh, 31, of Lowell, was charged with operating under the influence liquor and marked lanes violations.

Duggan was taken to Lahey Hospital & Medical Center, where he was treated for minor injuries and released.

Walsh will be arraigned Tuesday in Lowell District Court.

"This was a very serious high speed impact directly into the rear of Officer Duggan's police cruiser that could easily have resulted in serious injury and/or death," police said in a statement.

"The Billerica Police appreciate all the calls from the public and media who have expressed concern over Officer Duggan."