(Bloomberg) -- The UK antitrust regulator opened an investigation into Microsoft Corp.’s planned $69 billion purchase of Activision Blizzard Inc. joining other regulators in scrutinizing the deal.

The Competition and Markets Authority said Wednesday it will consider whether the deal will harm competition and lead to higher prices or reduced choice. It said it will work with counterparts around the world.

The CMA has long advocated for a more forceful approach to reviewing deals, particularly by the biggest technology companies. The Federal Trade Commission is also examining the deal, chair Lina Khan told lawmakers in June. 

Microsoft didn’t immediately respond to a request for comment. 

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