Further details, including how many people had been on boardthe plane and their condition, were not immediately available,the office said.
The comedian Kevin Nealon described seeing the crash on hisTwitter account.
"Horrible plane crash here at Aspen airport," he wrote inone of several messages sent from the scene. "Exploded intoflames as it was landing. I think it was a private jet."
LeAnn Rimes, the country singer, also took to Twitter todescribe seeing what she also described as the "horrible" crash."So sad!" she wrote.
Located in the Rocky Mountains about 190 miles (300 km) westof Denver, Aspen is known for its ski resorts.