Why it is difficult to send aid to Tonga after volcanic eruption
It is a remote group of islands in the South Pacific now covered in volcanic ash and cut off from the rest of the world.
That's what's making it difficult for aid to reach Tonga, following Saturday's volcanic eruption and tsunami.
The explosion of the Hunga Tonga-Hunga Ha'apai volcano triggered a tsunami across the Pacific Ocean.
swipe the button to the left to see the impact on Nuku'alofa
Drinking water
The most pressing need in the archipelago is drinking water. But the full extent of the damage has yet to be assessed.
So far, only three deaths have been confirmed. But photographs taken by the New Zealand Air Force show a completely destroyed village.
The Tonga government says some of the smaller outlying islands are particularly hard hit, with all...