(ANSA-AFP) - LJUBLJANA, SEP 16 - Slovenian police used water cannon and tear gas on Wednesday to disperse thousands protesting against toughened Covid-19 restrictions. Police said around 8,000 people attended the demonstration, making it the biggest so far against health restrictions in the small Alpine country of two million. "Police intervened to disperse the rally after protesters started throwing bottles, stones and fire crackers," a police statement said. Private news website N1 reported some officers had been injured, and several protesters had been detained as smaller groups continued to clash with police in the centre of the capital Ljubljana. The latest restrictions that came into force on Wednesday include a so-called "PCT" certificate as a condition to go to work or visit shops. To obtain a certificate citizens will need to have either been vaccinated, tested or to have recovered from the virus. They come as the number of those infected surges with only 45 percent of the population vaccinated. "Stop the corona fascism" or "Freedom, where are you?!" read some of the banners at the protest, organised through social networks by groups, including those denying the existence of Covid-19. (ANSA-AFP).