The state's top prosecutor said on Friday "Google’s anticompetitive behavior has unlawfully maintained the company’s monopoly on internet search and search-based advertising at the expense of consumers.”
The new lawsuit will allege that Google favoured its own products rather than presenting a neutral search result, disadvantaging rivals to such Google subsidiaries as YouTube, the sources said.
Google Australia and New Zealand Managing Director Mel Silva made her first public comments on the details of the proposed legislation since it was introduced to Parliament last week.
The regulator said the fines were "for having placed advertising cookies on the computers of users ... without obtaining prior consent and without providing adequate information."
European regulators have fined Amazon 746 million euros ($886 million) for data protection violations. Amazon said in a regulatory filing on Friday
Pressure is rising on Big Tech firms, signaling tougher regulation in Washington and elsewhere that could lead to the breakup of the largest platforms.
The hub is the first of its kind by the US tech giant in Central and Eastern Europe.
France’s competition regulator threatened fines of another 900,000 euros (around $1million) per day if Google did not come up with proposals within two months on how it will compensate media companies.
There has been a global effort by authorities to force the Internet giant and other tech firms to compensate publishers for content.