Puerto Rico is facing a growing crisis in the wake of Hurricane Maria, which has knocked out water, electricity, and telephone services.
The entire population is still without power and engineers say it could take months to be restored.
A dam remains in danger of collapsing.
Shipments of food, water and generators are starting to arrive at the main port in San Juan, which has reopened.
At least 13 people have died since Maria ripped through Puerto Rico.
Source: BBC
