https://apnews.com/e0c1dde88451763f04a6f133c78dbeab

LONDON (AP) — European Union regulators opened an in-depth investigation Tuesday into U.S. tech giant Google's plan to buy fitness tracking device maker Fitbit.

The EU's executive commission said it was concerned the deal would entrench Google’s position in the online ad market by “increasing the already vast amount of data" the company uses to personalize ads.