Attorneys general from 30 states, including Michigan, want federal regulators to crack down on the makers of energy drinks containing alcohol and caffeine.
The attorneys general accuse the manufacturers of misleading advertising for a product they say can pose serious health and safety risks.
They contend that aggressive marketing of energy drinks with alcohol targets young buyers of non-alcoholic energy drinks.
The attorneys singled out three manufacturers - Miller Brewing Company for Sparks and Sparks Plus, Charge Beverages of Oregon for its Liquid Charge and Liquid Core drinks, and Anheuser-Busch for Bud Extra.
A Miller spokesman says Sparks is meant only for customers who are of legal drinking age.