The records at issue contain material that is “potentially more explosive, more sensitive,” Pentagon spokesman Geoff Morrell said, than the information in the 77,000 Afghanistan field reports and assessments WikiLeaks put online last month in an effort to shed light on the U.S. military’s war in Afghanistan.

A task force of more than 100 intelligence analysts have been sifting “around the clock” through all 91,000 records, looking for hundreds of key words, including the names of Afghan citizens, mosques and allies, in an effort to evaluate the danger caused by exposure, Morrell said. “We have found many instances in which our allies or their forces are mentioned in these documents,” and the U.S. military has then notified them as the case warrants, he said.