Brazil has formally protested the US decision to impose 50 percent tariffs on all Brazilian exports from August 1, calling the move harmful to both economies and a threat to long-standing bilateral ties, according to Xinhua.

In a letter to US officials, Vice President Geraldo Alckmin and Foreign Minister Mauro Vieira expressed “indignation” over the decision, announced by US President Trump on July 9.

A Quaest poll shows 72 percent of Brazilians oppose the tariffs, with most fearing economic fallout. Over half back Brazilian President Lula da Silva’s call for reciprocal measures, as his approval rating sees a slight boost, Xinhua reported.

Meanwhile, the US has launched a probe into Brazil’s digital trade practices, claiming they disadvantage American businesses.