The world's longest aircraft, the Airlander 10 airship, has crashed during a test flight in Bedfordshire in central England, the Press Association reported on Wednesday.
The BBC reported the airship, which undertook its first flight last week, had hit a telegraph pole.
Hybrid Air Vehicles, the manufacturer of the helium-filled airship, said no-one was injured during the second test flight.
"All crew are safe and well and there are no injuries," it said on Twitter, without giving details of the incident.