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.

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

One person was in custody after what the authorities said was a random attack at a store near Traverse City, Mich.