The Ministry of Justice is preparing an antitrust investigation on Google

The US Department of Justice is preparing an antitrust investigation on Google's subsidiary Alphabet, the Wall Street Journal reported Friday. The effort will concern the Web search and other parts of Google, says the report.

The report comes amidst discussions between politicians and the public over whether large technology companies should be divorced. The Ministry of Justice opened a major antitrust litigation in 1998 against Microsoft, which led to several rules that the company had to follow for years.

Alphabet, which has achieved a turnover of $ 136.8 billion in 2018, has already been subject to antitrust pressure.

In 2010, the European company received an antitrust complaint from the European Commission regarding the ranking of search results and shopping ads. Google then imposed a fine of 2.7 billion dollars in 2017, according to the latest annual report of Alphabet. In 2016, the EC is complaining about practices related to Google's Android operating system, resulting in a charge of $ 5.1 billion in 2018.

And in March, the European Union condemned Google to pay around $ 1.7 billion because of its advertising behavior.

Senator Elizabeth Warren, who announced her candidacy for the presidency in December, insisted on the dissolution of technology companies like Google. In a mass-circulation article published on Medium in March, Warren said she was interested in appointing regulators who would be interested in canceling what she called "anti-competitive mergers," including DoubleClick, Nest and Waze, from Google. "Current antitrust laws allow federal regulators to split mergers that reduce competition," she wrote.

Google and the Department of Justice did not immediately respond to requests for comment.

Read the full Wall Street Journal report here.

Jennifer Elias of CNBC contributed to this report.

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