HOMERVILLE, Ga. - Surveillance footage shows the dramatic moments before an explosion at a coffee shop near the Georgia/Florida line.
The explosion happened at around 12:15 p.m. on Friday at the Coffee Corner, and rocked the tiny city of Homerville.
In the video, you can see the building's brick walls blast apart and the room partially collapse.
Three employees were in the building when it exploded. Medics airlifted them to a hospital in Florida.
Investigators said they do not suspect foul play the blast.
Glenn Allen, a spokesman for Georgia Insurance and Safety Fire Commissioner Ralph Hudgens, said late Friday that investigators determined a construction crew installing fiber optic cable in the tiny city of Homerville punctured an underground natural gas line.
Allen says that gas leaked into a sewer line connected to the coffee shop, where the gas built up and was ignited by a spark shortly after noon Friday.
Homerville has about 2,500 residents living roughly 30 miles from the Georgia-Florida line.
The Associated Press contributed to this report.