A police investigation is underway. Motorists are advised to find alternative routes due to a freeway closure. The closure affects southbound lanes and is causing backups. Authorities received a report of a possible incident around 11:40 a.m. and are searching for evidence.

The investigation is being conducted by Michigan State Police. They have not yet confirmed the nature of the incident, despite a reported activation in the area.

Further updates on this developing story are available from the source, as details continue to emerge and the situation unfolds.