The Islamic State group operating in Libya claimed Thursday to have executed two Tunisian journalists who were kidnapped in September, according to local media reports. ISIS militants operating in Barqah Province near Derna published photos of what they said was the execution of Sofien Chourabi and Nadhir Ktari.

International Business Times could not independently verify the authenticity of the photos. The group did not release a video of the execution as it has in the past.

ISIS is responsible for the beheadings of dozens of journalists across the world, particularly in Iraq and Syria. The group killed Western journalists James Foley and Steven Sotloff, who were kidnapped in Syria, and dozens of Iraqi journalists operating near Mosul.

In November, IBTimes reported Libyan fighters who pledged allegiance to the Islamic State group were gaining supporters and had consolidated power in the eastern city of Derna, close to the Egyptian border. It was the first city outside of Iraq and Syria to have a recognized ISIS presence.

An ISIS presence first emerged in Libya in September, when Sunni militias associated with al Qaeda in the Islamic Maghreb pledged allegiance to the group, hoping that the infamous name would give them leverage and support from outside forces.