State police are investigating two suspicious fires in Knox County.
Two trailers burned in Woodbine and now one person is behind bars.
Burned shells are all that is left of two trailers on Highway 6 in Woodbine. Firefighters got a 911 call last Friday afternoon that one was on fire.
"Found one trailer fully engulfed and someone, a passerby, told us the second house was on fire," said Casey Creech, Woodbine firefighter.
The fires also caused a brush fire in the woods behind the homes.
No one was injured in any of the fires.
The two trailers just yards apart were both empty at the time of the fires.
Now days after looking for the cause, firefighters say the two trailer fires are arson.
State police have arrested one person but no other details are available on who the suspect is or possible motives.
Firefighters say they want whoever set the fires punished because they say the fires put the whole community in danger.
"That's endangering our lives getting out there to put the fires out. It's endangering the property owners out there," said Creech.
Neighbors near the trailers did not want to do media interviews, but told us they are concerned.
Officials say the suspect is in jail.