Officials said a plane crashed in the Superstition Mountains in Arizona, about 40 miles east of Phoenix in Apache Junction, on Wednesday.
Local airports said no passenger airplanes were unaccounted for, according to ABC News. Currently, it is unclear how big the plane was or how many people were aboard and where it originated from.
A spokesman for the Pinal County Sherriff's Office told ABC News affiliate KNXV the plane went down in the mountains near the top at 4,500 feet and caused a fire visible several miles away.
Calls to 911 dispatchers about the crash started coming in at around 6:30 p.m. MST, and witnesses say flames were seen at the crash site 10 minutes later.
A spokesman for the Apache Junction fire department told ABC that officials are having difficulty reaching the crash site and the fire will most likely burn itself out, though they have responded to assist in helping potential victims.