US President Donald Trump blasted European Union regulators for targeting Apple Inc., Alphabet Inc.’s Google and Meta Platforms Inc., describing their cases against American companies as “a form of taxation.

The UK’s competition watchdog will examine whether Apple and Google should be subjected to extra scrutiny over how they run their mobile platforms, in its second investigation under new digital markets regulations.

The CMA intends to probe the operating systems, app stores, and web browsers of both Apple and Google to see whether they should be subject to stricter regulation.