Shell installation Nigeria
Shell installation NigeriaReuters File

Nigeria's militant group Niger Delta Avengers attacked multinational oil giant Shell's facility for the second time on Friday. The militant group claimed the oil company did not listen to the group's warning and continued repairing the previously blown up oil installation, Africa News reported.

The recent attacks followed the bombings that hit Chevron, NNPC and Agip oil and gas installations across the Niger Delta over the last few days. 

In a series of tweets, the militant group claimed to decrease Nigeria's oil production to zero. The attacks threaten to harm the economy of one of Africa's most populous state, the BBC reported.

Niger Delta Avengers calls itself a group of educated people who want to take the Niger Delta region to greater heights. In addition, the group says its members want a better deal for the people who have suffered due to the oil production in the region.

"We are a group of educated and well-travelled individuals that are poised to take the Niger Delta struggle to new heights that has never been seen in this nation before. We have well-equipped human resources to meet this goal," the BBC cited Niger Delta Avengers statement as saying.