The authority told Reuters earlier its decision "was not final as the company is free to present other remedies."

In a statement, Altice Portugal said it disagreed with the regulator's decision and was ready to provide all explanations to the authorities in order to still be able to proceed with the deal agreed with Spain's Prisa last year for Media Capital, which owns the TVI television channel.

(Reporting By Catarina Demony, writing by Andrei Khalip)