More than 30 people, the majority in the Kurdistan province of Amini, were killed and hundreds more injured or arrested, according to rights groups and news reports. The government has blocked Instagram and WhatsApp and cut or slowed internet access and mobile phone services across much of the country. Iran’s military and the Islamic Revolutionary Guard Corps (IRGC) have warned they will escalate their crackdown if the protests do not stop – although as of Friday there was no sign of the unrest and anger abating. Here’s what you need to know about what’s happening in Iran.