JAMESTOWN (AP) - Police and fire officials are looking into an apartment fire in this city, and also wondering if an arsonist is on the loose.

The May 29 blaze caused an estimated $65,000 in damage and drove four people from their homes until repairs can be made.

"We're looking at it as a set fire," police Detective Scott Edinger said. "We have no other logical source of ignition."

Fire Department training officer Jim Reuther said authorities are trying to raise awareness and maybe get some tips from the public.

"Our concern is that we may have a fire bug because we have no motive in the case," he said.

Edinger said authorities are looking into more than half a dozen other unsolved fires in the past five years, though he said there is no evidence to connect the apartment fire to any of the previous ones.

The only common traits of the fires is they appear random in nature, occurred during the summer and started during the evening or nighttime hours, Reuther said.

"It is unfortunate that these have happened," Reuther said. "They put a lot of people at risk."