Mozambique is facing an "invisible crisis".

The UN Refugee Agency is raising the alarm over the desperate situation in the southern African nation.

Fighting in the north against an Islamist insurgence has affected more than 780,000 people. 

It's been made worse with extreme weather events - most recently a cyclone in March which displaced more than 700,000 people.

Damien McSweeney from the UN Refugee Agency in Mozambique spoke to Worldwatch's Perlina Lau.