Iranian security forces opened fire on Saturday at protesters in the western town of Dorud, according to a video posted on social media, on the third day of anti-government demonstrations around the country. The video appeared to show demonstrators carrying two people in Dorud, where marchers were seen earlier shouting slogans against Supreme leader Ali Khamenei. The footage could not be authenticated and the gravity of the injuries sustained by the two protesters was not immediately known. In the city of Ahvaz, video circulated on social media showed protesters and security forces pelting each other with stones. Gunshots could be heard in other footage posted online. Commenting on the protests, US President Donald Trump said that “oppressive regimes cannot last forever,” reported Agence France Presse. Thousands have taken to the streets of cities across Iran, beginning at first on Thursday in Mashhad, the countrys second-largest city. The rallies spread to the capital Tehran on Saturday. The protests were sparked by social media posts and a surge in prices of basic food supplies, like eggs and poultry. Protesters in Tehran on Saturday chanted against high-ranking government officials and made other political statements, according to the semi-official Fars news agency. Hundreds of students and others joined a new economic protest at Tehran University, with riot police massing at the schools gates as they shut down surrounding roads.