Iran’s security forces have sought to disperse demonstrations with tear gas, metal pellets, and in some cases live fire, rights groups say.
In one video on Monday, students marched and chanted, “Jailed students must be freed!” at Tarbiat Modares University in Tehran.
In another, students streamed through Khayyam University in the conservative city of Mashhad, shouting, “Sharif University has become a jail!
The response by Iran's security forces has sparked widespread global condemnation.
“The violence leveled at protests in Iran by the security forces is truly shocking,” said British Foreign Secretary James Cleverly.