A flight was aborted at Brazil's Rio de Janeiro after a plane's engine burst into flames on the runway before take off. No passengers were hurt in the incident.
Sunak's pledge in a meeting with Brazilian President Lula at 10 Downing Street follows a similar commitment by US President Joe Biden earlier this year.
Federal police said, they were serving 16 seizure warrants and 6 preventive arrest warrants in Brasilia and Rio de Janeiro but did not disclose details.