A second earthquake in Mexico has caused extensive damage and more than 200 casualties, including children. Hundreds are trapped inside partially collapsed buildings. 

Hurricane Irma has passed over islands in Latin America and the Caribbean, but Hurricane Maria is now braced to hit the Dominican Republic.

In February, UN agencies declared a famine in parts of South Sudan. They estimated that 100,000 people faced immediate threat of starvation. They also raised a serious alarm that other regions in Africa are at risk of famine.