At least three people have died and 1,500 been treated after toxic waste was dumped in Ivory Coast's main city of Abidjan. The government has resigned over the scandal.
The foreign company that owns the vessel said an Ivorian firm had been put in charge of the waste after it was discharged several weeks ago. Local papers are alleging corruption.
Clinics have been overwhelmed by people complaining of stomach problems, nosebleeds, headaches and respiratory illnesses after inhaling fumes from the waste.
Hundreds of young men have set up roadblocks in protest at the dumping of waste in seven sites around the city.
Trafigura Beheer BV, the company that chartered the ship Probo Koala, said the waste was a mixture of gasoline, water and caustic washings.