Eleven people were injured in a “random” stabbing by a man with a folding knife-style weapon at a Walmart in Traverse City, Michigan, Saturday, according to the Grand Traverse County sheriff.

TRAVERSE CITY, Mich. (AP) — Eleven people were stabbed at a Walmart in Traverse City on Saturday — with six in critical condition — in what a Michigan sheriff said appeared to be a random act. A suspect was in custody, authorities said.

Officials said the stabbings happened near the checkout area of the store and appeared to be random in nature.