U.S. special operations forces early this summer launched a secret, major rescue operation in Syria to save James Foley and a number of Americans held by the extremist group ISIS, but the mission failed because the hostages weren’t there, senior administration officials told ABC News today.

President Obama authorized the “substantial and complex” rescue operation after the officials said a “broad collection of intelligence” led the U.S. to believe the hostages were being held in a specific location in the embattled Middle Eastern nation.

When “several dozen” U.S. special operation members landed in Syria, however, they were met with gunfire and “while on site, it became apparent the hostages were not there,” one of the officials said. The special operators engaged in a firefight in which ISIS suffered “a good number” casualties, the official said, while the American forces suffered only a single minor injury.

The American forces were able to get back on helicopters and escape.