An airship fell from the sky and caught fire close to the US Open during the early stages of the first round at Erin Hills, Wisconsin.
Organisers said the aircraft was “unaffiliated” with the US Open or television coverage of the event.
Eye witnesses posted social media footage showing the blimp falling to the ground and the onboard crew using parachutes to escape.
A tweet from the US Open account said the pilot was injured in the incident.
A US Open statement said: “According to local authorities, a commercial blimp not affiliated with the USGA or the US Open Championship broadcast crashed in an open field approximately a half mile from the Erin Hills golf course at approximately 11:15 (17:15 BST).
“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.”