President Jair Bolsonaro orders soldiers to be sent to the region, after pressure from EU leaders.
Demonstrators gathered outside Brazilian embassies to protest against inaction on Amazon fires.
Simon Cheng was reported missing on 8 August after crossing the border for a business trip.
The Illinois case comes as US health officials track 149 cases of vaping-related lung illness.
Thousands of people held hands to form a human chain of peaceful protest against a suspended extradition bill.
The president hits back at Beijing's plans by hiking tariffs on Chinese imports by another 5%.
This weekend's meeting in France brings together the heads of the world's leading economies.
Sharks and rays pushed towards extinction by the shark fin trade are hot on the agenda at key wildlife talks.
South Korea says two more missiles - the seventh round in recent weeks - were fired early on Saturday.
Six EU countries are to host 356 African migrants, who were stranded at sea for two weeks.
Jaitley, 66, oversaw the most significant tax reform in India since independence.
Speaking ahead of the G7 summit, the prime minister says the UK will be an "energetic partner" after Brexit.
The 86-year-old is the most senior liberal justice at the Supreme Court.
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