Niger Delta Avengers group claims five attacks in Nigeria's southern Delta

By Tife Owolabi and Alexis Akwagyiram YENAGOA, Nigeria (Reuters) - The Niger Delta Avengers, a militant group that has been carrying out attacks on Nigerian oil facilities in the past few months, claimed responsibility on Sunday for five new attacks in the southern energy hub since Friday. The group had previously not laid claim to any attacks in the Niger Delta - the source of most of the OPEC member's oil - since June 16. Petroleum Ministry sources said in late June that a month-long truce had