Nigerian militant group said it attacked Shell and Agip crude trunk lines . Governments and oil companies are failing to be accountable for the problems , Amnesty said in its report , called `` Petroleum , Pollution and Poverty in the Niger Delta . '' Shell said it is investigating reports of an attack on the Niger Delta pipeline . Army spokesman : ` ` No iota of truth in what they ( Nigeria ) are saying '' Movement for the Emancipation of the Niger Delta at war with government .
Nigerian militant group said it attacked Shell and Agip crude trunk lines . Shell said it is investigating reports of an attack on the Niger Delta pipeline . Army spokesman : ` ` No iota of truth in what they ( Nigeria ) are saying '' Movement for the Emancipation of the Niger Delta at war with government .