The European Union fined Google $1bn for favoring its own services in search results, prompting a sharp response from US President Donald Trump. Trump threatened that the EU would pay a 'big price' for the penalty against the American tech giant. The EU's antitrust action accuses Google of giving its own shopping service an unfair advantage over competitors. Trump lashed out against the bloc, saying the fine is a way to take advantage of the United States. The dispute highlights ongoing tensions between the US and EU over how to regulate big technology companies. Google has denied the allegations and plans to appeal the decision. The fine is one of several that the EU has imposed on Google in recent years over various antitrust violations. Trump's threat raises the possibility of retaliatory tariffs or other measures against European goods. The EU has previously clashed with US tech firms over data privacy and market dominance. The outcome of this dispute could affect trade relations between the two economic powers.