A nonprofit group called the SALT Coalition – an acronym for Spiritual Activists Leading Together – has organized an interfaith prayer vigil for those affected by Saturday’s extreme violence at a Walmart store in the up-north Michigan town.

Chaos unfolded at a Walmart in Michigan after a man burst into the store during a calm shopping afternoon and stabbed 11 people at random, authorities say.

The Michigan State Police said the local sheriff’s office is investigating the incident and details are limited.