SACO, Maine (AP) – A grocery chain has apologized to a black man who was told not to return to a store in Maine after he questioned whether he and his wife were being treated unfairly due to race.

Rory Ferreira tells the Portland Press Herald that he asked to speak to a manager at a Shaw’s store in Saco after a clerk told him that both he and his wife needed to present ID to buy alcohol.

He told the manager he wanted to ensure he was treated the same as everyone else. He says the manager then refused to finish selling him the groceries and had police give him a no-trespass order.

Ferreira says he met with company executives, who apologized. The company says it is investigating the encounter.