The deliberate targeting of so many children has caused outrage across the world. And it's part of an increasing - and horrifying - trend.
A teenage girl is stopped from travelling to Syria by counter-terrorism police, who staged a last-minute intervention, removing her from a flight that had begun taxiing down the runway at Heathrow.
Supporters of pro-Islamic State tweeter take to Twitter in their hundreds to demand the release of a man arrested after a Channel 4 News investigation.
Indian police arrest a man suspected of operating the most influential pro-IS Twitter account, following a Channel 4 News investigation.
The man behind the most influential pro-Islamic State Twitter account tells Channel 4 News he is "ready to surrender" after Indian police report they are investigating him.
The most influential pro-Islamic State Twitter account to be followed by foreign jihadis - Shami Witness - is shut down after a Channel 4 News investigation uncovers the identity of the man behind it
Syrian television says Israel warplanes bombed targets near Damascus airport and the town of Dimas, near the border with Lebanon.
Two British men who travelled to Syria to join rebel fighters have been jailed for 12 years and 8 months.
One in every 50 migrants who try to reach Europe across the Mediterranean Sea will die on the journey. What is so terrible in their home countries to force people into such a desperate voyage?