A Syrian Christian fighter has beheaded an Islamic State militant to avenge people "executed" by the jihadists in northeastern Syria, according to Agence France-Presse. The beheading occurred on Thursday in Hasakeh province where ISIS has a strong presence, The Syrian Observatory for Human Rights said.

A Christian fighter, also a member of the minority Assyrian community, found the jihadist in the local village of Tal Shamiram. "He took him prisoner and when he found out he was a member of IS, the Assyrian fighter beheaded him in revenge for abuses committed by the group in the region," Observatory chief Rami Abdel Rahman said, according to Agence France-Presse.

The Syrian Observatory for Human Rights is based in England. The organization's "about us" section gives a description of the group: "We are a group of people who believe in Human Rights, from inside and outside the country, documenting the Human Rights situation in Syria and reporting all Human Rights violations, filing reports and spreading it across a broad Human Rights and Media range. We cooperate with Human Rights organisations in Syria, the Arab world and the international community with what goes along with our goals and aspirations: Democracy, Freedom, Justice and Equality." The organization claims not to be affiliated with any political organization.

The Christian fighter was fighting in the ranks of Kurdish forces. The Kurds have been making progress against the invading Islamic State; Earlier this month, the fighters drove ISIS out of more than a dozen villages the jihadists had captured in Hasakeh.