GREENVILLE, Pa. — Three family members perished in an early Friday morning fire at a Greenville home.

Mercer County Coroner John Libonati identified the victims as Diana Mayes-Britton, 35, and her 11-year-old twin children, Olivia Mayes and Johnothon Mayes. Libonati said more information on cause of death and injuries will be provided after a forensic investigation is completed.

No evidence suggests foul play was involved, Libonati said. The three were found together in an upstairs bedroom of the home at 411 S. Main St. as they were trying to escape the flames, according to a report.

The fire started about 6 a.m. Friday, the report states. The Mercer County 911 Center later reported the fire had been extinguished at the two-story structure.

When emergency crews arrived, the house was fully involved on the first and second floors, and reports were received that people might be inside, according to a news release from Greenville police.

Emergency responders could not immediately gain entry, but once fire crews knocked down the flames, one adult and two children were found deceased in a second-floor bedroom, the release states.

Si Thurber, 74, lives two doors away and is a bus driver for the Jamestown school district. Thurber went to the burning house, found a ladder there and put it up, helping an 8-year-old girl and an adult to escape.

Thurber said the father, Timothy Britton, got out. The news release stated he was taken by air to Allegheny Hospital.

“It looked like the porch was about to cave in,” Thurber said as he rescued the father from the other side of the house. “It looked like he inhaled a lot of smoke.”

Thurber said as he was going to work in the morning, he encountered two children from the burning house who told him it was on fire. He called 911 with his cellphone.

After his heroics, Thurber said he went to work and completed his bus route.

“There was nothing else to do at the scene. The firetrucks and police had arrived and were getting the fire under control,” Thurber said.

The 12-year bus driver who formerly worked for a ladder company said he didn’t think his actions were anything special.

“I would think anyone would do something like that,” Thurber said. “But my son told me differently. You know when children were involved, I would do anything to save them. My heart goes out to the ones who were lost as well as their mother.”

A family member said a total of five children and four adults had lived at the house. Two adults were not there at the time of the fire, a report states.

The state fire marshal’s office in Butler, as well as Greenville police, are continuing the investigation into the cause of the blaze. Initial reports indicate the fire is not of suspicious origin, according to a news release.

“Please keep our community and those families impacted by this tragic event in your thoughts and prayers,” Jasson W. Urey, Greenville borough manager, said.