MISSISSAUGA – Enersource is warning the public about an ongoing scam targeting the company’s residential and small business customers.

Customers are receiving calls from a person claiming to be from Enersource, who then threatens to disconnect them from the power grid within an hour unless immediate payment is received. Enersource officials say, in some cases, the calls come in the evenings or on weekends when it’s harder to find out if it’s legitimate.

Enersource officials are reminding the public that’s not the utility company’s usual practice. They said they will work with customers to create payment options when an account is overdue.

Enersource issued a similar warning in November about the scam.