The Niger Delta Avengers (NDA), a new militant group that have been sabotaging Nigeria’s oil infrastructure for months in the Niger Delta region, for the third time in a week has attacked a major pipeline, Al Jazeera reported. This time the group attacked the Nembe pipeline carrying crude exports. “I am aware that there was a dynamite attack on the pipeline,” Nengi James, Chairman of the Nembe Oil and Gas Committee, told AFP news agency. The attack disrupted deliveries promised by oil companies.

The NDA claimed the attack on a Twitter account – @NDAvengers– bearing its name in a post that said it had blown up the “Nembe 1, 2 and 3 Brass to Bonny trunk line” at 2:15 am. A followup post threatened “something big is about to happen”. Earlier attacks attributed to NDA this week have seen Chevron and Nigeria’s state-owned oil and gas infrastructure blown up, All Africa reported.

The Avengers has launched several attacks on oil and gas infrastructure since February 2016, demanding a sovereign nation of the Niger Delta people. Like other groups before it, the NDA wants a fairer share of oil revenues for the impoverished and polluted southern region. In addition, the group said it’s aim is to cripple Nigeria’s economy while demanding the secession of the Niger-Delta region.