Google has signalled it is ready to do battle with EU antitrust regulators after a landmark 2.4-billion euro fine and the possibility of a second record sanction before the end of the year.

The world’s most popular Internet search engine has hired five top law firms in Brussels to help it deal with EU regulatory troubles.

The EU competition authority fined Google last month for unfairly favouring its shopping service.

Anti-trust regulators are also weighing a record fine against Google over its Android mobile operating system and a third case involves its AdSense for Search platform.