It is alleged he channelled money to Nigerian officials, to obtain contracts valued at more than $6bn (£4bn). The contracts related to the construction of liquefied natural gas facilities on Nigeria's Bonny Island between 1995 and 2004.
Bonny Island
UK arrest in Nigerian bribe case
Civilians and oil firms flee Niger Delta as guerrilla attacks worsen
Threatened with beheading and harried by pirates who robbed them, people fleeing the Niger Delta's Bonny Island this weekend struggled to reach Port Harcourt, the regional capital, as the conflict worsened between armed groups and Nigeria's armed forces.
Bank robbers open fire near Nigeria Shell site
PORT HARCOURT, Nigeria, May 19 (Reuters) - Nigerian security forces clashed with gunmen trying to rob a bank on Monday outside the gates of a Royal Dutch Shell (RDSa.L: Quote, Profile, Research) compound on Bonny Island, in the southern Rivers state, police said.