WESTPORT — Police Sgt. Robert Myer, 48, was found dead in his Newtown home early Wednesday.

The unexpected death of Myer, also a member of the Police Commission in Newtown, is being investigated by authorities in his hometown as “untimely.” His body was taken to the state Office of Chief Medical Examiner to determine the cause of death, officials said.

Myer, who was promoted to the rank of sergeant last December, had been a member of the Westport police force more than two decades. He joined the department as an intern in 1991 and was hired as a full-time officer in 1992. He was promoted to the rank of corporal in 2014, and when he advanced to sergeant in December, he was assigned as a supervisor in the Patrol Division.

In addition, he served as a member of the Southwest Regional Emergency Response Team as a crisis negotiator; was a member of the Police Department’s crisis intervention team, the police Marine Division and its Honor Guard.

Myer received numerous awards throughout his career, as well as dozens of letters from citizens thanking him for his assistance and dedication, police officials said Wednesday.

“Regardless of his assignment, Sgt. Myer always served our community to the best of his abilities,” Police Chief Foti Koskinas said in a statement. “Bob will be greatly missed. Our deepest sympathies go out to his family and we again ask that you keep them in your thoughts and prayers during this extremely difficult time.”