Two French executives from a Dutch-based commodities trader that chartered the ship at the centre of Ivory Coast's toxic waste scandal have been prevented from leaving the country...Seven people have died and thousands became ill after inhaling toxic fumes from slops originally unloaded at Abidjan port last month by the Probo Koala, a tanker chartered by…Trafigura Beheer BV…Public outcry over the dumped waste, which caused panic in Abidjan and sent more than 30,000 rushing to seek treatment at hospitals, caused the Ivorian government to resign earlier this month...Authorities have also arrested seven Ivorians and one Nigerian, including the directors of the companies which handled port formalities and unloaded the waste from the ship. [also refers to Seche Group]