US President Donald Trump has escalated the transatlantic trade dispute by threatening to impose additional tariffs on European goods.

The warning comes in the wake of a significant antitrust fine levied against Google by European regulators, which the US administration views as an unfair burden on American technology companies.

The threat adds to existing friction over the EU's digital services tax, which has already prompted Trump to warn of 100% tariffs on goods from countries maintaining such levies.

Trump characterized the situation by stating that the United States is not a "piggy bank" for Europe.

This rhetoric signals a hardening stance on digital services taxes and regulatory penalties, suggesting that Washington may retaliate against Brussels and member states with new trade barriers.

The threat adds to existing friction over the EU's digital services tax, which has already prompted Trump to warn of 100% tariffs on goods from countries maintaining such levies.

Markets are likely to monitor the situation for signs of broader trade policy shifts that could impact cross-Atlantic commerce and tech sector valuations.