Google Inc. is bracing itself for a second massive fine from European Union regulators, as another antitrust case nears its conclusion.

EU antitrust officials have asked for a second opinion on the case, which relates to Google’s Android platform and its dominance of the mobile device market in Europe, according to a report from Reuters. The regulators have reportedly asked a panel of experts to examine their findings, which have not yet been made public.

The report comes just weeks after EU officials slapped Google with a record $2.7 billion fine after finding it guilty of abusing its dominance of the search engine market to display Google Shopping results ahead of rival companies.

This particular case was lodged in April 2016 following a complaint from the lobby group FairSearch, ad blocking and privacy firm Disconnect Inc. and Russian search engine company Yandex, which accuse Google of using Android’s dominance to shut out rival services, Reuters said.

The EU says Google has been employing anti-competitive practices since January 2011, and continues to do so even now. Google’s tactics, it says, include demanding that smartphone makers pre-install Google Search and Google Chrome on their devices in return for access to other Google apps. Google also prohibits manufacturers from using rival versions of Android.

Experts say the case could potentially harm Google even more than last month’s record fine, as Android has a much bigger growth potential.

“If Google was forced to unbundle Google Play from its other Digital Life services, handset makers and operators would be free to set whatever they like by default potentially triggering a decline in the usage of Google’s services,” Richard Windsor, an independent financial analyst, told Reuters.

The EU Commission reportedly established its peer review panel to examine its findings in June. These panels are generally made up of three or four officials, who’re tasked with examining the investigation’s findings to ensure they have a robust case. This work generally takes three to four weeks, but it’s not clear if the work has actually started, Reuters said.

Google is also the subject of a third anticompetitive-behavior investigation by the EU regarding its AdSense advertising business. The EU accuses Google of intentionally ranking its own results higher than those of its competitors. If the case is proven, it would likely result in yet another massive fine for the Internet giant.

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