The European Parliament has backed legislation to implement an EU-US trade deal, following months of uncertainty over President Donald Trump's tariff threats.

On Thursday, lawmakers moved to strengthen its safeguards, including a provision to suspend the agreement if the US imposes additional tariffs above 15% or introduces new duties on EU goods. Another would halt the deal if the US threatened the EU's territorial sovereignty.

MEPs also included a "sunrise clause" that means EU tariff reductions will only take effect if the US upholds its side of the bargain - including lowering tariffs to 15% on EU products that contain less than 50% steel and aluminium.

When the framework agreement was announced last summer, Trump said the 50% US tariff on global steel and aluminium would still apply to the EU.