The executions allegedly took place in Raqqa, a Syrian province under ISIL control. The terrorist organization, also known as the Islamic State of Iraq and Syria (ISIS), continues to govern the territory by a strict interpretation of Islamic law and severely represses potential dissent. Earlier this year, the small Christian community remaining in Raqqa received an ultimatum demanding that they pay a tax and follow other strict rules, convert to Islam, or be killed.

The Britain-based Syrian Observatory for Human Rights posted a graphic photograph of the two prisoners being crucified. Pedestrians walking by the two men appear to be unfazed.

One of the men is pictured with a sign wrapped around his body reading: “This man fought against Muslims and threw a grenade in this place.”