WWMT - wwmt.com - Search Results The following is an archived video story. The text content of that video story is available below for reference. The original video has been deleted and is no longer available. Explosion at building in Calhoun CountyCALHOUN COUNTY, Mich. (NEWSCHANNEL 3) - Emergency crews are on the scene of an explosion and fire in Calhoun County.Shortly before 11:30 a call went out to dispatchers. The caller was reporting an explosion that happened at nearby building behind where they live. The building is in the 100 block of Long Lake Woods Drive south of Marshall. The caller told dispatchers that the people in the building make fireworks. Officials say that everyone was able to make it out safely.