At least 1,750 people were wounded, said the Paris-based relief agency Doctors Without Borders.

"It has run its natural course," said Philippe Biberson, the president of the medical agency Doctors Without Borders.

"Companies have negotiated a seat at the table when policy is made," said Daniel Berman of Doctors Without Borders.

The official website of the organization says that Reporters Without Borders:

"There are people on board who have been drinking sea water for two or three days," said Phil Doherty, an official with Doctors Without Borders.

Officials have used legal channels to close down "dissident" TV and radio networks, says Reporters Without Borders.

"It's not so much the food that's lacking," said Clemens Vlasich, medical coordinator for Doctors Without Borders.

A single tree lying on its side from bank to bank is all that links the river's two sides, said the aid group Doctors Without Borders.

"This is the worst case scenario," said Rachel Cohen of Doctors Without Borders.

"We're basically talking about a system that could help save millions," said Ellen 't Hoen, program director at Doctors Without Borders.