A Supreme Court judge ordered an investigation into potential insider trading in Brazil’s currency markets around the announcement of US tariffs on Brazilian goods.

RIO DE JANEIRO (AP) — Brazilian President Luiz Inácio Lula da Silva said Thursday that he will impose retaliatory tariffs on the United States if President Donald Trump follows through on a pledge to boost import taxes by 50% over the South American country’s criminal trial against his predecessor, Jair Bolsonaro.

WASHINGTON/BRUSSELS - U.S. President Donald Trump turned his trade ire against Brazil on Wednesday, threatening Latin America's largest economy with a punitive 50% tariff on exports to the U.S. and ordering an unfair trade practices investigation that could lead to even higher tariffs.