The US Department of Justice moved to break up Google's hold on internet searches on Wednesday, initiating a rare but significant antitrust push that could see the tech giant ordered to part with its Chrome browser.

The US government late Wednesday asked a judge to order the dismantling of Google by selling its widely used Chrome browser in a major antitrust clampdown on the internet giant.

In a court filing, the US Department of Justice urged a shake-up of Google's business that includes banning deals for Google to be the default search engine on smartphones and preventing it from exploiting its Android mobile operating system.

Antitrust officials said in the filing that Google should also be made to sell Android if proposed remedies don't prevent the tech company from using its control of the mobile operating system to its advantage.

Calling for the breakup of Google marks a profound change by the US government's regulators, which have largely left tech giants alone since failing to break up Microsoft two decades ago.

Google is expected to make its recommendations in a filing next month and both sides will make their case at a hearing in April before US District Court Judge Amit Mehta.

Regardless of Judge Mehta's eventual decision, Google is expected to appeal the ruling, prolonging the process for years and potentially leaving the final say to the US Supreme Court.

(AFP)