A deadly flash flood at Fort Leonard Wood, Missouri claimed the lives of four unnamed foreign soldiers Sunday morning. The Army is currently searching for a fifth victim.

“We are saddened by this tragedy, and our thoughts and prayers go out to the families of the victims,” the Army said in a statement. “Our priority now is to provide care and support to those affected by this tragic event.”

The four soldiers were assigned to the Fort Leonard as part of the post’s International Student Detachment. Investigators believe they were driving when their car was swept away by flood waters. The Army hasn’t released the names or home countries of the victims.

There have been 43 storm-related deaths across the country in the last week thanks to heavy blizzards and rain. At night, flash floods become especially dangerous for both pedestrians and drivers.

“Streams turn into rivers, and people sometimes don’t see the road has flooded over when they are driving at night,” Pulaski County Sheriff Ron Long said.

If you live in Missouri or any other region suffering from dangerous flooding, stay safe!