European Union (EU) competition commissioner Margrethe Vestager said EU regulators will actively go after Google parent Alphabet on several fronts ranging from its contracts with advertisers to its Android mobile-operating system.

Earlier this year, the EU has formally filed a complaint against Google over allegations of anti-competition malpractices.

Vestager was quoted by the Wall Street Journal (WSJ) as saying, "I do not think of it as one Google case but literally as different investigations and different cases.

"What they have in common is that the name Google appears in each one, but apart from that they are very different."

Vestager said a separate investigation of Google’s conduct regarding Android is also a high priority for EU regulators.

She also noted that the EU is also planning to move forward separate investigations over allegations that Google abuses its dominant position in advertising contracts with website operators and copies data from rival sites, according to the WSJ.

The European Commission accused Google of infringing EU antitrust rules and stifling competition by misusing its dominant position in search services in the European Economic Area (EEA) through preferential treatment to its own shopping links.

Google has however rebuffed the EU’s allegations by claiming that despite its 90% share of the European search market and Android’s 70% share of the European smartphone market, competition is still thriving in the sector.