A twin-engine aircraft crashed into a field near Brainard Drive and Midway Boulevard in unincorporated Boulder County shortly after 10:00 a.m. Saturday. The incident resulted in no survivors, according to a release from the Boulder County Sheriff’s Office, though the number of people aboard the plane remains unclear.

According to officials, the aircraft had taken off from Rocky Mountain Metropolitan Airport and contacted air traffic control prior to the crash, reporting an unspecified issue while attempting to return to the airport. The plane crash in a field that is part of an open space property in agriculture enclosure, sparking a small grass fire that was swiftly extinguished by North Metro Fire Rescue District crews.

Boulder County Sheriff’s Office personnel secured the crash site following the incident and will remain overnight to ensure safety and preserve evidence for investigators. The area is closed to the public, and authorities asking people to stay away from the area.

Federal agencies have joined local efforts to investigate the cause of the crash. The Federal Aviation Administration (FAA) and National Transportation Safety Board (NTSB) are expected to lead the inquiry into the circumstances surrounding the crash. Meanwhile, the Boulder County Coroner’s Office will release identities of the deceased once next-of-kin have been notified.

Responding agencies included Boulder County Sheriff’s Office, North Metro Fire Rescue District, Boulder County Open Space, Broomfield Police Department, and the FAA. No injuries were reported among emergency personnel or nearby residents.

Editor’s note: Portions of this article have been augmented with the assistance of Large Language Models for analysis, with human review, editing, and original material.