The European Union is considering whether to launch a review of Microsoft’s investment in ChatGPT maker OpenAI under the bloc’s merger regulations, a month after the U.K. said it was also weighing whether the tech partnership could have an impact on competition.

The European Commission, the EU’s executive arm, made the disclosure on Tuesday as it sought input from interested parties on the level of competition in virtual worlds and generative artificial intelligence, and feedback on what competition law can do to keep these new markets competitive.