Ninety Americans are unaccounted for following devastating floods along the Nepal/China border, according to the U.S. State Department. The floods, which have impacted a wide region, have left hundreds missing overall. NBC News correspondent Janis Mackey Frayer is reporting from the affected area. Details regarding the circumstances of the Americans’ disappearance remain scarce. Authorities are currently focused on search and rescue efforts in the challenging terrain. The scale of the disaster is significant, hindering communication and access to remote regions. The State Department is working to provide assistance and gather information on the missing U.S. citizens.