Brazilian President Jair Bolsonaro has been fined for not wearing a mask as he joined thousands of motorcyclists at a rally in Sao Paulo.
Bolsonaro waved from his bike to the cheering crowd as he used the occasion to insist masks were useless for vaccinated people.
The rally snaked in and out of the city, arriving back at Ibirapuera Park, where the far-right leader addressed supporters and said mask-wearing for vaccinated people was pointless. The claim is disputed by most health experts however.
"Whoever is against this proposal is because they don't believe in science, because if they are vaccinated, there is no way the virus can be transmitted," said Mr Bolsonaro.
Under 12% of Brazilians have had both doses of a vaccine, the ministry of health says, and many experts there believe masks should stay until most people have had their jabs.
State authorities later confirmed that Bolsonaro had been fined the equivalent of about £78 for violating a local law that requires masks in public places.
He was previously fined for the same reason after a rally in the state of Maranhao in May.
More than 480,000 people have died with coronavirus in Brazil and Bolsonaro has consistently downplayed the severity of the pandemic.