TRAVERSE CITY, Mich. (AP) — At least 11 people were stabbed at a Walmart in Traverse City, and a suspect was in custody, authorities said Saturday.

Munson Healthcare said via social media that 11 people were being treated at the region’s largest hospital in northern Michigan, and spokesperson Megan Brown said all were stabbing victims.

She did not immediately have information on their conditions. Munson Healthcare said it would provide updates “as appropriate.”

The Michigan State Police said the local sheriff’s office was investigating the incident and details were limited. The agency asked that people avoid the area while the investigation is ongoing.

A fire truck, multiple police vehicles and uniformed first responders were seen outside the Walmart following the incident.