The EU and the U.K. have opened antitrust probes into the tech giants.
The agreements between the two companies will be looked at to see if they hampered competition in the markets for online display advertising services.
The CEO of the U.K.'s Competition and Markets Authority said in a statement that they were concerned that the partnership between Meta and Google may have put obstacles in the way of competitors.
It can be hard for start-ups and smaller businesses to break into the market if one company has a lot of power.
Meta's non-exclusive bidding agreements with other bidding platforms have helped to increase competition for ad placements. Meta can deliver more value to advertisers and publishers through these business relationships. We will cooperate with both inquiries.
CNBC asked for comment from Google, but they didn't reply immediately.
This is a breaking story and will be updated soon.