Russia has informed Brazil's aircraft investigation authority that it will not probe the crash of the Brazilian-made Embraer jet that killed mercenary boss Yevgeny Prigozhin under international rules "at the moment," the Brazilian agency said Tuesday.

Prigozhin, two top lieutenants of his Wagner Group and four bodyguards were among 10 people who died when the Embraer Legacy 600 crashed north of Moscow last week.

He died two months to the day after staging a brief mutiny against the Russian defense establishment that posed the biggest challenge to President Vladimir Putin's rule since he rose to power in 1999.