The soldiers disappeared during an exercise on Tuesday, stated Lithuania's military earlier, according to the public service company LRT.
American sources claim that the four soldiers were involved in an accident during an exercise, without confirming the deaths.
Rutte – who is speaking during a trip to Warsaw – emphasizes that he does not know any details about the incident.
The news came about four American soldiers who were killed in an incident in Lithuania. This is still early news, so we do not know the details. It is really terrible news and our thoughts go to the families and their loved ones, says Rutte.