On April 27, the Iraqi government returned several Arab families to the Sinjar district of northern Iraq, the traditional homeland of the Yazidi people. A Yazidi woman claimed to recognize one of the returnees as a member of the Islamic State, an organization that had previously enslaved her and that committed, in 2014, a genocide against the Yazidi people, according to a United Nations investigation.

Yazidis gathered to demonstrate against the return of the refugees. Videos quickly circulated online claiming to show Yazidis throwing stones at a mosque, and the rumors soon turned into explosive accusations that Yazidis were burning the mosque.

The Sunni Endowment Office, the body that administers Sunni mosques in Iraq, confirmed that the reports were false and that no damage was inflicted on the mosque. It was too late. Muslim religious leaders in Iraq released dozens of videos referring to Yazidis as devil worshippers — a historical trope frequently leveled against Yazidis — and called for them to be murdered. Fear spread among the thousands of Yazidis still residing in refugee camps in Iraq that another wave of violence is on the horizon.

Much of the fomenting of violence against Yazidis occurred on Facebook, but hate speech also spread in WhatsApp groups. A member of one WhatsApp group, for example, said they would bring a machine gun to a refugee camp in Kurdistan and kill as many Yazidis as they could. The French Embassy in Iraq released a statement condemning the proliferation of hate speech.