( Hamilton ) - Investigators say workers using cutting tools sparked a fire Thursday morning at the former Smart Papers plant on North B Street.

Upon arrival, firefighters had to deal with multiple fire locations and a moderate amount of smoke. Also, they had to avoid large holes that could lead to 30-foot falls. Those holes are from where paper machines used to be. Snow was also an issue as firefighters were hauling hoses to get to the fire.

Mutual aid was requested and help arrived from St Clair Twp and Hanover Twp.

Two-and-a-half hours later, the fire was out. No one was hurt.