A militant group calling itself the Niger Delta Avengers issued a warning to oil companies working in the region that its campaign is about to get bloody. The Niger Delta Avengers have launched a steady string of attacks on energy infrastructure in the region, issuing a manifesto earlier this month that warned oil companies the attacks marked only a beginning. The group said it was frustrated by what it saw as a lack of attention to the region paid by Nigerian President Muhammadu Buhari . The military said it led a successful campaign against the group during the weekend. In response, the group […]