Tens of thousands of documents belonging to the inspector general of the US Air Force were lost when a technical problem caused the crash of the database on which they were stored. The office responsible for supervision, investigations and management of the air force lost about 100,000 records that it handled since 2004, mostly regarding internal investigations. "The database crashed and there is no data," Air Force spokesperson Ann Stefanek said. "At this time we don't have any evidence of malicious intent." A spokesman for the Lockheed Martin company that ran the database for the air force said company experts were trying "to identify the cause, and restore the lost data."