The soldiers were serving with the International Security Assistance Force, the organization said in a statement.

CNN: Afghanistan: Soldiers killed in attack on U.S. base

"The operators of the UAV lost control of the aircraft and had been working to determine its status, " said the statement released by NATO's International Security Assistance Force.

WSJ: Iran Says It Shot Down Unmanned U.S. Plane

"To safeguard financial stability in Sweden and ensure the smooth functioning of the financial markets, the Riksbank has therefore decided to grant liquidity assistance to Kaupthing Sverige, " it said in a statement.

NPR: Iceland Shivers From Financial Crisis