The chief of the boat on the USS Annapolis has been relieved of his duties due to allegations of alcohol-related misconduct, according to the Navy.

Senior Chief Sonar Technician Gregory Cordray was relieved of his duties Thursday as the most senior enlisted sailor on the Annapolis by the commanding officer of the submarine, according to Submarine Group Two.

The alleged misconduct occurred while Cordray was on liberty overseas, or off-duty while in port, Group Two said. The investigation, which is being conducted by Submarine Development Squadron Twelve in Groton, is ongoing.

Annapolis (SSN 760) is currently deployed. Cordray has been temporarily assigned to the squadron.

Master Chief Electronics Technician Ed Durrua will temporarily assume the duties of the chief of the boat.

Cordray has been on the Annapolis since 2011 and has served in the Navy since 1988. Submarine Group Two could not immediately respond to questions.