Nigerian President Muhammadu Buhari has been warned against plans to wind down the Presidential Amnesty Programme (PAP) or risk raising insecurity in the already volatile oil-producing Niger Delta.

The PAP was introduced by a previous administration in 2009 to buy peace in the region and followed years of militant activity that crippled the oil sector.

A number of former militants and activist organisations have cautioned against complacency, with several youth groups and traditional leaders warning of violence if stipends paid under the scheme are withdrawn.