Alphabet, Apple, Amazon and Facebook are in the crosshairs of the FTC and DOJ

A new deal between the Department of Justice and the Federal Trade Commission will see U.S. regulators divide and conquer as they expand their oversight of Apple, Alphabet, Amazon and Facebook, according to multiple reports.

New details have emerged of an agreement between the two U.S. regulators that would see the Federal Trade Commission take the reins in antitrust investigations of Amazon and Facebook, while the Department of Justice will oversee investigations of Alphabet’s Google business and Apple.

Shares of Apple’s stock tumbled on news of the Justice Department’s role in overseeing the company, which was first reported by Reuters even as the company was in the middle of its developer conference celebrating all things Apple.

Google has been here before. Eight years ago, the Federal Trade Commission began an investigation into Google for antitrust violations, ultimately determining that the company had not violated any antitrust or anti-competitive statutes in its display of search results.

On Friday, The Washington Post reported that the Justice Department was initiating a federal antitrust investigation into Google’s business practices, according to multiple sources.

That report was followed by additional reporting from The Wall Street Journal indicating that Facebook would be investigated by the Federal Trade Commission.