"We deeply regret this unfortunate error and are taking immediate action to remedy this. Parents are advised that the misprinted, incorrect website is not appropriate for children," the company said in a statement.

Toy manufacturer Mattel has said it "deeply regrets" a misprint on packaging for dolls inspired by the new Wicked movie which listed the address for an adult website. The company recently released the singing dolls ahead of the long-awaited film starring Cynthia Erivo and Ariana Grande.