Mr. Bolsonaro, who lost Sunday’s presidential election, fled Brazil for the United States via Argentina after the police canceled his passport in relation to an investigation.
Officials in Argentina said Mr. Bolsonaro entered the country by land then flew to Ecuador. Brazilian police had asked him to hand over his passports because of his links to an investigation.
President Luiz Inácio Lula da Silva’s re-election ended a string of victories by right-wing candidates in Latin America. His opponent, Flávio Bolsonaro, fled Brazil for the United States.