Brazilian President Lula da Silva launched a fiery attack on U.S. President Donald Trump, slamming his threat to impose 50% tariffs on Brazilian goods as “unacceptable blackmail.” The diplomatic clash erupted after Trump linked the tariffs to Brazil dropping legal charges against former president Jair Bolsonaro over his alleged coup attempt.

U.S. President Donald Trump over the weekend said he would slap a 30% tariff on goods imported from the European Union from Aug. 1. EU leaders have said they are still aiming to come to an agreement with the U.S. before the tariffs kick in. Economists said they still expect that a framework agreement can be reached in time.