PLAINVILLE, Conn. — Authorities say a Connecticut police officer has been charged with driving under the influence.

Hartford Police Deputy Chief Brian Foley says an investigation is underway after Robert Lanza’s arrest Sunday morning in Plainville.

Town police say officers stopped the 11-year Hartford police veteran after reports of an erratic driver on state Route 72. Authorities say Lanza slurred his words and smelled of alcohol but refused to say if he’d had anything to drink.

Police say the 44-year-old man was unsteady on his feet and wouldn’t take sobriety tests.

Police administrators say they will review incident reports before determining whether to put Lanza on leave.

Lanza is also charged with interfering with an officer. It couldn’t be determined Monday if he has an attorney who can comment on his behalf.