Tens of millions of children living through conflict, disaster and other emergencies in dozens of countries urgently need protection, UN Children’s Fund (UNICEF) said on Tuesday, in an appeal for $3.9 billion to support its humanitarian work around the world.

A group of deaf and hard-of-hearing Syrian refugee and local Lebanese children have sung in a choir in Beirut giving a performance that was “nothing short of miraculous,” according to conductor Pascal Khairallah.

On a small island in the remote South Pacific, a one-month-old baby has become the world’s first child to be given a vaccine delivered by a drone, the United Nations Children’s Fund (UNICEF) has announced.

Well over 7,000 child casualties in Syria’s brutal armed conflict have been verified over the last five years, but this is just “the tip of the iceberg,” the United Nations Regional Humanitarian Coordinator for the crisis lamented on Tuesday, with thousands more cases likely going unreported.