Here is a statement from the USGA on the crash:

"According to local authorities, a commercial blimp not affiliated with the USGA or the U.S. Open Championship broadcast crashed in an open field approximately a half mile from the Erin Hills golf course at approximately 11:15 a.m. CDT. First responders were quick to arrive at the scene and the pilot is currently being treated for unknown injuries. No other people were involved in the incident and local law enforcement is currently investigating. Our thoughts and prayers are with the pilot at this time."