Brazil's top electoral court gave Meta 24 hours to prove it treats campaign content from President Lula and Senator Flávio Bolsonaro equally, threatening daily fines before Sunday's tight presidential runoff.

Brazilian President Lula's re-election coalition has reported Meta to the United Nations, alleging the platform gave rival Senator Flávio Bolsonaro unfair treatment on Facebook, Instagram and WhatsApp. The coalition also asked prosecutors and federal police to investigate possible illegal campaign financing. Meta says the incidents were technical errors.