Taliban attacks earlier this month killed and wounded scores of children, causing trauma and suffering that could last a lifetime, say observers.
The blast comes less than a week after 50 other children were wounded in another wayward Taliban attack in Kabul that damaged five schools.
Taliban militants killed dozens and wounded more than 100 -- including 50 children -- in three separate attacks across Afghanistan in recent days.
ISIS fighters who waged a bloody campaign in Iraq and Syria are heading to Afghanistan to continue their violent insurgency and help plot attacks against the United States.
The recent terror attacks in Sri Lanka underscore how militants are tapping social media and campus discussion groups to prey on students.
Observers are denouncing Abu Bakr al-Baghdadi, who fled into hiding as coalition-backed forces wiped out his so-called 'caliphate' and took back its territory in Syria and Iraq.
The IRGC is the Iranian government's primary means of directing and implementing its global terrorist campaign, say officials.
Tensions are rife among women and children of ISIS fighters being held in the refugee camp.
The fall of ISIS's last remaining territory heralds the end of the living hell it imposed on millions.
The United States wants countries to repatriate the fighters, while the Kurds want to set up an international tribunal. All the allies want the extremists behind bars.