Greek police used teargas and water cannon to disperse people who had gathered in central Athens on Saturday to protest against mandatory COVID-19 vaccinations, APA reports quoting Reuters.
More than 4,000 people rallied outside the Greek parliament for a third time this month to oppose mandatory inoculations for some workers, such as healthcare and nursing staff.
A police official, who asked not to be named, said some protesters had thrown petrol bombs, prompting the police to respond with tear gas.
A rally on Wednesday was also marred by violence.