Nigeria's Buhari needs to address grievances in Delta after militant attacks

Nigerian President Muhammadu Buhari speaks at a joint news conference with his French counterpart Francois Hollande at the presidential villa in Abuja, Nigeria, May 14, 2016

NIGERIA: Nigeria's President Muhammadu Buhari needs to address grievances in the Delta region where militants have been blowing up oil pipelines in a conflict that has become a "major concern", a senior British official said on Saturday.

The swamps of the southern Delta have been hit by a series of attacks on pipelines and other oil and gas facilities that have reduced Nigeria's output by 300,000 barrels a day, closed a major export port and two refineries.