Continuing conflict in Yemen has left millions without adequate access to food and water, and the international community needs to do everything it can "now" to fund a major relief effort.

Stephen O’Brien, the UN emergency Relief Coordinator, said public services were under huge stress and in some cases, civil servants had gone six months without pay.

Escalating conflict in Yemen between Saudi-backed government forces and Houthi rebels has persisted for nearly three years.

Mr O’Brien spoke to May Yaacoub from Yemen, where he been rallying support for relief efforts to prevent famine.

Duration: 4’14”