WEST HAVEN, Conn. — U.S. Sen. Richard Blumenthal is calling for an investigation into a veteran's death at the West Haven Department of Veterans Affairs Medical Center.

Blumenthal said Saturday he contacted the VA's Office of Inspector General.

The Connecticut Democrat says veteran Zachary Greenough died of an overdose at the facility and his office was told Greenough obtained illegal drugs while living there. Blumenthal is calling for action to ensure the safety of inpatient veterans.

The New Haven Register reports that according to a friend and fellow veteran, Greenough died late Dec. 22 or early Dec. 23 and was believed to be 29 years old.

VA spokeswoman Pamela Redmond confirmed to the newspaper that a patient in a PTSD program was found dead in a hospital bathroom.

She says the matter is under investigation.