The former Islamic State (IS)-linked group to which Austrian jihadist Mohamed Mahmoud (AKA Abu Usama al-Ghareeb) belonged, announced the killing of an official, but disputed reports that he died alongside Mahmoud and two others in a U.S. airstrike on the IS prison in which they were held.

Two days after his reported death in a coalition airstrike on an Islamic State (IS) prison in which he was held, a photo was revealed showing the dead body of Austrian jihadist Mohamed Mahmoud (AKA Abu Usama al-Ghareeb).

Mohamed Mahmoud (AKA Abu Usama al-Ghareeb), an Islamic State (IS) fighter imprisoned by the group for allegedly breaking ranks and sowing sedition, was reportedly killed in a coalition airstrike while in IS detention.

A pro-Islamic State (IS) jihadist published a poster threatening a holiday attack in the Austrian capital, Vienna, while another IS supporter warned of the group in Manhattan, New York.

The Islamic State’s (IS) al-Hayat Media Center released the 7th issue of Rumiyah magazine, featuring in the English version an article by a Finnish woman, and in the German edition, a piece inciting to kill “imams of disbelief” in Germany and Austria.

Austrian fighter Mohamed Mahmoud (AKA Abu Usama al-Gharib) appeared with a German colleague in an Islamic State (IS) video from Tadmur, shooting to death two captive soldiers and calling on Muslims in Austria and Germany to come to IS-held territories or wage lone-wolf attacks at home.

Jihadists distributed pictures of Austrian jihadist and Islamic State (IS) fighter Mohamed Mahmoud (AKA Abu Usama al-Gharib) with beheaded bodies in an unidentified area.

Austrian jihadist Mohamed Mahmoud (AKA Abu Usama al-Gharib), who was recently imprisoned in Turkey, has reportedly married female jihadist Ahlam al-Nasser in Syria's ar-Raqqah governorate.

In a statement attributed to Mohamed Mahmoud (AKA Abu Usama al-Gharib), the Millatu-Ibrahim leader denied a report in an Austrian newspaper that his experience in prison has made him turn his back on jihadi ideology and beg to be extradited to Austria.

A Millatu-Ibrahim member in Austria spoke on the arrest of the group's leader, Mohamed Mahmoud (AKA Abu Usama al-Gharib), asking Muslims not to abandon him and other imprisoned jihadists.

Following the arrest in Turkey of Millatu-Ibrahim leader Mohamed Mahmoud (AKA Abu Usama al-Gharib), a member of the group called upon Muslims to support him and respect his principles.

Millatu-Ibrahim leader Abu Usama al-Gharib (AKA Mohamed Mahmoud) renounced his Austrian citizenship and burned his passport in a video, declaring that he is a mujahid and not a member of such "toxic societies".

Dominik Neubauer, an Austrian citizen kidnapped in Yemen on December 21, 2012, appeared in a video with a gun to his head and pled for the European Union and Austrian and Yemeni governments to pay ransom money to his captives.