Aid teams on the ground in Syria are working round the clock to help those displaced by last week’s earthquake disaster, but the needs remain massive, UN humanitarians said on Tuesday.

In Aleppo, where families have found shelter in schools, mosques and churches, the UN Disaster Assessment and Coordination team (UNDAC) expressed concern that conditions are cramped and unsuitable, while many remain too terrified to return to their homes, fearing that they might collapse.

With more, here’s UNDAC Syria chief Samir Elhawary, speaking to UN News’s Daniel Johnson.