WATERLOO, Iowa (KWWL) — The former Waterloo Candy Co. building along West Park Avenue in downtown Waterloo partially collapsed on Thursday. Authorities do not know exactly what caused the collapse. The building in question is well over 100 years old, being constructed in the early 1900s. No injuries were reported, and no persons were missing or unaccounted for, according to Waterloo Fire officials, who were asking people to stay away from the structure, which is in danger of further collapse.

Waterloo Fire Marshal Brock Weliver told KWWL-TV that the area of concern is an approximately a 60-foot collapse zone all around the property which still has the potential to come down. He’s not sure of which direction debris might fall if the structure collapses more. The building is deemed unsafe for entrance and the City is recommending it be demolished if it can’t be reinforced and saved.

The surrounding roads will be closed off for the foreseeable future, until there is no longer a threat of further collapse in the area. Building owner Rich Penn said in a statement to the television station that the building was acquired a number of years ago with the intent of saving it from demolition, and that part of the goal is to keep the structure part of the City’s rich past and a new use that will add more life to the growing and exciting downtown Waterloo area.