United Nations, Dec. 6 -- Reports that violent extremists in Syria have executed civilians in the east of the war-torn country have been condemned by the UN's top rights official, Michelle Bachelet.

Speaking to journalists in Geneva on Wednesday, the High Commissioner for Human Rights warned that an "at least 7,000" people in Deir-Ez-Zor province were trapped, amid efforts to dislodge ISIL from one of their last strongholds in Syria.

"These civilians are of course frightened and stuck between the intensifications of the airstrikes and bombardments against ISIL on one hand, and also being prevented from leaving the areas under ISIL's control on the other hand," Ms Bachelet said. "We have also reports of ISIL executing civilians perceived a...