BELOIT, Wis. (WTAQ) - Rock County authorities say they have no official suspects, but they have concluded the weekend fire that destroyed a Beloit restaurant was arson. The Gun Club was a total loss.

Federal and state agencies are offering a reward of up to $10,000 for information leading to arrests. The fire reportedly started at about 5 a.m. Saturday in the kitchen or dining area.

The restaurant first opened in Beloit 77 years ago -- and it has been a local landmark for decades.