Here’s the statement released by the International Security Assistance Force, the NATO-led mission in Afghanistan, on the August 6 helicopter crash:

Thirty International Security Assistance Force service members, one civilian interpreter, and seven Afghan commandos were killed when a coalition CH-47 Chinook crashed in Afghanistan early today.

All of the ISAF service members on board were from the U.S.

The incident represents the highest number of U.S. forces killed during a single event in support of Operation Enduring Freedom.

“No words describe the sorrow we feel in the wake of this tragic loss,” said General John R. Allen, Commander, International Security Assistance Force. “All of those killed in this operation were true heroes who had already given so much in the defense of freedom. Their sacrifice will not be forgotten. Our thoughts and prayers are with the families who are now waiting for their loved ones to return home. We will do everything in our power to support them in this time of need.”

“We also mourn the loss of our heroic Afghan partners who fight with us shoulder to shoulder, every day,” added Allen.

An investigation is underway to determine the exact cause of the crash. Additional details will be provided as they become available.