A Piper PA 31 plane has crashed in the city of Elko, Nevada under unknown circumstances, officials said. NBC affiliate KRNV report that there were at least 4 people on board, citing local authorities.

Per a police scanner, local business Sierra Java is offering shelter to evacuated residents. Sierra Java is located near the Gold Dust West Elko casino, which is about a half-mile from a regional airport.

we have to evacuate our house because there's a plane crash. — manda (@dowdheyyy) November 19, 2016

Witnesses on social media reported the crash occurred in a parking lot, where parked vehicles exploded from the impact.

Fire services, ambulances, and police have reportedly arrived at the scene.

Plane just crashed in Elko pic.twitter.com/G0MD5Q7ION — Tyler (@TBelderrain) November 19, 2016

Flames were reportedly seen near a grocery store and a senior housing complex, Elko Daily reported.

According to Elko cardiologist Dr. Rodney Badger, the American Medflight fixed-wing plane had just taken off from Elko’s airport with a heart patient, who was being transported to the University of Utah.

Allen Kenitzer, a spokesman from the Federal Aviation Administration (FAA), confirmed to KRNV that an aviation “accident” had taken place in Elko County and noted the type of plane involved.

@maddiann16 it crashed into gold dust and it's right next to my house and all the Barrick cars are blowing up — manda (@dowdheyyy) November 19, 2016

PLANE CRASH/EXPLOSION: Barrick parking lot, Mtn City Hwy -bus & vehicles on fire; senior apts on Aspen also on fire https://t.co/c5HFh4OC6P — Sean Michael (@realSwanMichael) November 19, 2016

Aspen and Cimmaron Ways and Mountain City Highway have been closed, allegedly due to the incident, the paper added.