A plane crashed into a mobile home park in Steamboat Springs, Colorado, Monday afternoon, setting two trailers on fire, authorities said. 

Steamboat Springs Fire Rescue said first responders were on the scene of West Acres Trailer Park working to extinguish the fire and secure the scene. 

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The city said ten firefighters and off-duty personnel worked to extinguish the fire to two homes and several outbuilding as well as secure the scene for the downed aircraft.

"All first responding agencies are aware of the plane crash. Please do not overwhelm our 911 dispatchers," the Routt County Sheriff’s Office said on a Facebook post. "First responders are already at the scene getting in the right resources. We will update the public as soon as we have more information." 

The Federal Aviation Administration (FAA) told Fox News Digital that a twin-engine Cessna 421 crashed into the mobile home park around 4:30 p.m. while approaching Steamboat Springs Airport/Bob Adams Field. 

The City of Steamboat Springs said the airplane was believed to be enroute from Longmont, Colorado to Ogden, Utah. 

It's not clear at this time how many people were on board, but all occupants are believed to have died, the city said. 

The Steamboat Springs Police Department (SSPD) on other agencies secured the neighborhood. SSPD established a call line for residents and family members to reach out after the crash. All residents of the mobile park have been accounted for, the city said. 

The FAA and the National Transportation Safety Board are investigating. 

Steamboat Springs is located in north central Colorado, about a three-hour drive from Denver.