[originaltext] The Amazon is a lifeline for everyone in the river basin, fro

The Amazon is a lifeline for everyone in the river basin, from businessmen in the big city of Manaus to indigenous tribes in remote settlements. When water levels fall, the biggest effect is on transport-ferries and barges are the only way of moving goods and people around an area that spans about half the South American continent. In the last few weeks, the river and its tributaries have become increasingly difficult to navigate, and vital supplies of food, medicine and fuel are now struggling to get through. In an example of the risks, sixteen people were killed last Friday in a ferry accident which the captain blamed on difficult river conditions.
Question: How many people were killed last Friday in the ferry accident?