(ABCNews)-- At least one person is dead and another has serious injuries after a private plane crashed today at the Aspen/Pitkin County Airport in Aspen, Colo., the Pitkin County Sheriff's Office said.
Emergency crews responded immediately to the crash, the Sheriff's Office said.
The plane, which according to the Sheriff's Office had three people onboard, originated from Mexico and stopped in Tucson, Ariz., before arriving in Aspen.
Federal Aviation Administration spokesman Allan Kenitzer said there was not much information that could be confirmed early on.
"The airplane appears to be a Bombardier Challenger 600, coming from Tucson to Aspen. It crashed while attempting to land," Kenitzer said.
Multiple witnesses, including singer Leann Rimes and comedian Kevin Nealon, reported seeing the plane crash on twitter and wrote that smoke was coming from the site.
Around 2:30 p.m. ET Nealon wrote, "Horrible plane crash here at Aspen airport. Exploded into flames as it was landing. I think it was a private jet."
Nealon wrote that emergency services were there within minutes.
"Fire trucks and other emergency vehicles still at scene. No word on survivors or who was on jet but I can't imagine there are survivors," Nealon wrote on Twitter.
The airport was closed following the crash.