A video posted on YouTube, and reported confirmed as genuine by an ISIS fighter, shows the group apparently executing many Syrian soldiers after marching them through the desert. A video caption states that 250 executions have been carried out, while the Syrian Observatory for Human Rights, which monitors violence in the war, says the death toll is more than 120. The killings reportedly occurred as ISIS seized Taqba airbase in the province of Raqqa over the weekend. An ISIS militant:
Yes, we have executed them all.