In an update earlier this week, Big Rapids DPS has identified two persons of interest in the case of the mysterious substance at Water Tower Apartments.

The incident occurred on Friday morning, Nov. 21, 2025, where a plastic pop bottle was seen in the parking lot of the apartment complex. The Michigan State Police Bomb Squad was called to the scene to sample and discard the bottle from the scene.

"Both subjects are cooperating with the investigation," Big Rapids DPS stated in a release. "The case remains under investigation while detectives wait for lab results to come in from the MSP Forensic Lab, which may take several weeks."

Read more on the initial incident here: https://bigrapidsdailynews.com/breaking-news/891531.