China announced retaliatory tariffs on select American imports and an antitrust investigation into Google on Tuesday, just minutes after a sweeping levy on Chinese products imposed by U.S. President Donald Trump took effect.

China said it had started an antitrust investigation of Google, which works with Chinese companies on smartphones and advertising outside the country.

China said Tuesday it has launched an antitrust investigation into Google, part of a swift retaliation after the U.S. president Donald Trump imposed a 10% China has launched an antitrust investigation into Google after the U.