In Iran, anti-government protests are in their fourth week, sparked last month by the death of 22-year-old Mahsa Amini while in the custody of Iran’s “morality police.” On Monday, oil workers went on strike in support of the protests. Meanwhile, the death of 16-year-old Nika Shakarami has ignited more public rage. The girl’s family says she disappeared after being chased by security forces for burning her headscarf during a protest, and was found 10 days later at a mortuary.

This comes as human rights groups warn of the deadly crackdown on protesters. In Iran’s Kurdistan province, one group says at least 32 people in the region have been killed, another 1,500 injured and thousands arrested.