A large fire broke out in an industrial building at Clarke Business Park in Bethel this afternoon.  The blaze was reported around 1pm in a building housing a business that makes tape adhesive and another that makes non-toxic cleaning products.

Initial reports are that no one was in the building, but officials say it won't officially be known until firefighters can get into the building.

Mutual aid is being provided by Danbury, Brookfield, Weston, Trumbull, Shelton, Roxbury, Redding and Monroe firefighters.  An estimated 100 firefighters were still working to fight the flames five hours after arriving on scene. 

(Photo: Brookfield Volunteer Fire Department)

Stony Hill Volunteer Fire Company says it was still an active scene at 6:30pm.  Firefighters were awaiting an excavator to help open up the building.

(Photo: Stony Hill volunteer Fire Company)

The state Department of Energy and Environmental Protection sampled the air and water and found no hazards.

Earlier in the day there was a fire in a custodial area of Bethel Middle School.  Firefighters responded quickly and the flames were extinguished.  School officials say the electrical panels must be examined for damage.  Bethel Middle School will be closed Monday.  Other schools in the district will be in session as scheduled.  The Cyberbullying & Internet Safety Community Conversation scheduled at Bethel Middle School for tomorrow has been postponed. A new date has yet to be determined.