According to authorities, one crew member was killed and two others were injured when their military helicopter crashed on a golf course in Maryland on Monday.

The crash:

In a statement on Monday afternoon, the U.S. Army Military District of Washington said that at around 1:37 p.m., a UH-60 Black Hawk helicopter from U.S. Army Fort Belvoir in Fairfax County, Virginia, was conducting a training flight when it crashed at Breton Bay Golf Course in Leonardtown, Maryland.

The statement added that one of the injured crew members was in serious condition while the other is currently in critical condition.

Commanding general for Joint Force Headquarters National Capital Region and the U.S. Army Military District of Washington, Maj. Gen. Bradley A. Becker, said in the statement: “We are deeply saddened by this loss within our community. Our condolences go out to the families and friends affected by this tragedy, and our team is focused on supporting them during this difficult time.”

An investigation is ongoing to determine the cause of the crash.

The helicopter had “suffered a hard landing” near Leonardtown according to a U.S. military official’s statement to NBC News earlier Monday. Adding that at least one was medically evacuated to a local hospital.

In a post on Facebook, the St. Mary’s County Sheriff’s Office stated that deputies and EMS personnel were at the scene of the crash, it also urged people to avoid the area.

Prior incident:

About two weeks prior to this incident, a fighter jet, which was on a routine training mission at the time, crashed in a wooded area near Joint Base Andrews in Maryland. The pilot was able to successfully eject himself from the D.C. Air National Guard F-16C fighter jet.

According to NBC Washington, no one was injured on the ground.