COQUILLE — Tragedy struck early Wednesday morning when a fire ripped through a trailer at a Coquille RV park, claiming the lives of two young boys from Roseburg.

According to Coos County District Attorney Paul Frasier, the preliminary determination is that 13-year-old Christopher Thorp and his 8-year-old brother Grayson died of smoke inhalation.

The boys had been spending the night with their grandmother, 59-year-old Virginia Jennings, in her travel trailer at the Rivers Edge RV park off state Highway 42. Another one of Jennings’ grandchildren, 7-year-old Caden Teddleton of Coquille, was also staying in the trailer.

About 1:16 a.m., dispatchers took a report of a fire at the location. First responders found the trailer fully engulfed in flames.

Jennings had managed to escape, and Caden was pulled from the trailer by neighbors before the fire grew out of control.

Christopher and Grayson never made it out.

Frasier was called out shortly after firefighters discovered their bodies.

Standing by a police cordon after emergency personnel removed the boys’ remains from the trailer, the veteran prosecutor didn’t mince words.

“It’s ugly,” Frasier said.

Within hours, the number of investigating agencies grew to include the Coos County Medical Examiner’s Office, Myrtle Point Police Department and Coos Bay Police Department, along with Oregon State Police and an investigator from the State Fire Marshal’s Office.

As of Wednesday afternoon, Caden was in critical condition in the burn unit of Portland’s Legacy Emanuel Hospital. Jennings was treated and released at Coquille Valley Hospital.

State arson investigators spent most of the morning in protective suits, sifting through debris inside the trailer.

Frasier said their presence has been requested “in an abundance of caution,” but the cause of the fire is still under investigation.

Anyone with information is asked to call the Coquille Police Department at 541-396-2114.