The European Commission has accused the US tech companies Google and Apple of breaking its digital rules.
The commission pressed ahead with enforcement action against Apple and Google’s parent company Alphabet, accusing them of breaking the EU Digital Markets Act.
The commission has accused Google of prioritizing its own services in search results and limiting competition in its app store, while Apple has been ordered to make its operating systems available to competitors' devices.
The US president, Donald Trump, has warned that he could retaliate by imposing tariffs on foreign companies.