A preliminary report published Friday morning shows three people were killed Thursday evening in a fiery crash when a small plane smashed into a mobile home park in Clearwater, Florida.

The Federal Aviation Administration’s report lists three fatalities, one among the flight crew and two people inside the home. The crash happened at 7:27 p.m. ET on Thursday.

The FAA notes the “aircraft crashed under unknown circumstances into a mobile home park,” and reports there was a “post crash fire.”

The only occupant in the plane was the pilot, the FAA said.

At least nine people were inside the mobile home earlier Thursday night, but only two remained at the time of the crash, the Clearwater Fire and Rescue Department said in a news release.

Firefighters responded to the crash site at the Bayside Waters mobile home park, Fire Chief Scott Ehlers said Thursday during a news briefing. They found four trailer homes on fire – one of which had the crashed plane inside, Ehlers said.

The plane was found “predominantly” in one mobile home, the fire chief said Thursday. Crews were still trying to tame hot spots and reach the bodies of those who died, Ehlers added.

“Our thoughts are with the three victims and their families; this tragedy could have been even worse,” Clearwater Police Chief Eric Gandy said.

Clearwater resident Steven Ascari said he heard what sounded like an explosion Thursday evening that shook his apartment.

“And next thing you know, a giant pillar of smoke was seen,” he said in a message.

As officials received a call about a fire at the mobile home park, there was a report at the same time of a plane experiencing an emergency at an airport, Ehlers said Thursday. The plane ultimately went off radar about 3 miles north of a runway, the same location as the mobile home park.