By Lisandra Paraguassu RIO DE JANEIRO -Leaders of the growing BRICS group of developing nations were set to gather in Rio de Janeiro on Sunday, calling for reform of traditional Western institutions while presenting the bloc as a defender of multilateralism in an increasingly fractured world.

Brazil hosts the second and final day of the 17th BRICS Summit in Rio de Janeiro on Monday. (AP video by Lucas Dumphreys)

The BRICS bloc has criticized rising tariffs and attacks on Iran in its latest summit declaration. Meeting in Rio de Janeiro on Sunday, the group also condemned NATO’s increased military spending and expressed concerns about global trade disruptions caused by tariffs.

Trump, who raised the tariff threat on Sunday, said in a Tuesday cabinet meeting at the White House that the duty was on the way: "Anybody that's in BRICS is getting a 10% charge pretty soon ... If they're a member of BRICS,

By Manuela Andreoni and Lisandra Paraguassu RIO DE JANEIRO (Reuters) -Developing nations at the BRICS summit on Monday brushed away an accusation from President Donald Trump that they are "anti-American,