TURKEY’S invasion of northern Syria has led to a rise in attacks by Isis sleeper cells, a new report revealed yesterday, with scores of civilians killed as jihadists once more gain a stronghold.

Research by the Rojava Information Centre (RIC) showed a 48 per cent increase in the death cult’s attacks in the region since the Turkish military campaign began last month.

It coincides with anti-Isis operations by the Syrian Democratic Forces (SDF) decreasing by 75 per cent as the Kurdish-led fighters were forced to switch focus to defend largely Kurdish areas from the Turkish invaders and their jihadist allies.