UPDATE: Hamilton County authorities are investigating a fire that claimed the life of two teenagers over the weekend.

It happened off of Dolly Pond Road in Birchwood, Sunday night. 

Friends say 18-year-old Logan Kennedy and 19-year-old Katelyn Woods had been dating and they were in love. Deputies found the young couple dead inside of Logan's grandfather's house.

"I can't imagine what they may be going through right now," said friend Jim Davis. " How they're feeling and for a grandchild or a child I just don't know, I don't have words." 

Neighbors and loved ones along Dolly Pond Road are heartbroken over the loss. They say the family has lived in the community for several years. 

Firefighters got the call around 6:30 Sunday night and when they got to the scene, the house was fully engulfed in flames. 

"This is a really close knit community and it's a shame," said Davis. " We want them to know that everybody is praying for them and trying to help them get through this tragic situation anyway that we possibly can." 

Logan's co-workers tell Channel 3, he was excited to tell them on Saturday that he had proposed to Katelyn and she said yes. There's now a collection jar at the counter where he worked for his family. 

"They're God loving people and it's just a shame, it's really tragic," said Davis. " I feel for them, they know if I can do anything for them they can call on me at anytime and all the neighbors around here feel the same way." 

The Hamilton County Sheriff's office and fire investigators were back on scene Monday morning, looking for clues in what started the fire. Investigators say the cause of the fire is still under investigation. 

PREVIOUS UPDATE: Hamilton County Sheriff's Office confirm a house fire in Birchwood killed two people Sunday night. 

Highway 58 VFD responded to the home on Dolly Pond Road with possible entrapment around 6 p.m. Officials say the home was fully engulfed.

When firefighters were able to contain the fire, the scene was safe to access. Investigators entered the home and found two bodies. 

Officials identified them as, 18-year old, Logan Kennedy and 19-year old, Katelyn Woods from Bradley County. 

Investigators are working to determine the cause of the fire.

PREVIOUS STORY: A fire destroyed a home in the Birchwood area on Sunday.

When firefighters with the Highway 58 Volunteer Fire Department arrived at the home on Dolly Pond Road, it was engulfed in flames. At the time, it was unsafe for firefighters to search the home because of the conditions.

It's unclear if anyone was inside the home or what sparked the fire. The fire will be investigated by the Hamilton County Sheriff's Office.