A rash of fires in a Caldwell RV park is suspicious, but investigators have not yet determined who or exactly what started them, Caldwell Fire Marshal Andy Cater said.
"Someone or something in the neighborhood is causing fires," Cater said. "We just haven't come to the conclusion of what that might be."
The Caldwell Fire Department and Canyon County Sheriff's Office are investigating.
Two fires broke out in vacant homes at Town Circle RV Park late Monday or early Tuesday, and one of those homes also had a fire last Friday, Cater said. Add that to several similar fires in the same neighborhood last year, and it's a troubling trend, he said.
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Not all of the homes that burned were vacant, but no one was home at any of them, he said, and no one was injured.
The two trailers most recently burned had no electricity or heat source, he said, and the site of the most recent fire was locked up to prevent unwanted entry. Firefighters found broken windows when they arrived.
"Someone could have broken into it, gone in through a window or put something in through the window," Cater said.
Caldwell firefighters were battling a blaze in an unoccupied mobile home at 21860 Town Circle early Tuesday when they got a call that another home on the opposite end of the park was on fire, Capt. Jose Martinez said.
Firefighters were able to knock down the fires fairly quickly, but both mobile homes appear to be a total loss, Martinez said.
Katy Moeller contributed.