It is unclear how the explosion happened. This is a developing story. Stay tuned to KCCI on-air and online for updates.

These responses were included in 141 emails The Gazette received as part of a request to the Iowa DNR, which now is suing C6-Zero to force cleanup of the explosion ... out of the building at ...

C6-Zero founder Howard Brand told Iowa officials his shingle recycling business had a "clean bill of health" in other states, ...

Iowa's News Now learned Wednesday the explosion and fire at C6-Zero in December will be ruled accidental. 15 workers were ...

A contractor at Adventureland Park in Altoona, Iowa, died in a workplace accident, reports say. Charlie Neibergall AP A 20-year-old contractor at an Iowa theme park was killed in a workplace ...

25—A former chief of staff for Iowa Gov. Terry Branstad and a former ... In the seven months before the Dec. 8, 2022, explosion and fire that injured 15 people and left an environmental mess ...