Radical Islamist groups fighting in Syria continue to conduct atrocities and executions. Now, reports indicate that extremists fighting for the Islamic State of Iraq and the Levant (ISIL) have publicly crucified two Syrian rebels.

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."

The human rights organization revealed that this was not the first crucifixion committed by ISIL. On April 16, its fighters killed a man for stealing from a Muslim in a similar fashion.