Indianapolis, Indiana - A night off for three Dutch soldiers training in Indiana ended in a tragedy after an as-yet unexplained "altercation" turned deadly.

On Saturday, the Dutch Defense Ministry said that three of its soldiers had been injured in a shooting in front of their hotel in central Indianapolis.

One victim, 26-year-old Simmie Poetsema, was noted to be in critical condition, and on Monday, the Dutch authorities confirmed his death, adding that "family and colleagues were at his side"

The other two soldiers, who were also hospitalized, are reportedly conscious and responsive.

All three members of the Commando Corps, a special operations unit, were in Indiana for an exercise. They were off duty when some kind of "disturbance" took place between the soldiers and at least one other person, whom the police are still searching for.

Law enforcement was called to the hotel where the soldiers were staying at around 3:30 AM local time on Saturday. All three were found with gunshot wounds, according to reports.