Damascus: The Islamic State (IS) terror group has killed five media activists in Syria's Deir al-Zour province, officials said on Sunday. According to the Syrian Observatory for Human Rights (SOHR), the IS released an execution video of the five activists -- who had been held captive for nine months -- which showed them being killed in five different ways, EFE news reported. One of the victims was identified as Sami Jawddat al-Rabbah, an activist who worked at SOHR. The IS jihadis killed al-Rabbah by detonating his laptop, to which he was tied. The group said the five victims were accused of acting against IS and releasing information in exchange for money, among other things.