Oil militants have slashed Nigerian oil production with attacks this year on installations in the south. They seek a greater share of profits for residents who have lost livelihoods to industry pollution that has destroyed agriculture and fishing grounds.

Deputy Superintendent Olumuyiwa Adejobi, the police spokesman for Ogun state, told The Associated Press on Thursday that "hoodlums" pretending to carry out repairs planted dynamite that blew up a major gas pipeline of the Nigerian National Petroleum Corp. overnight.

Disruptions to gas used to generate power have compounded Nigeria's chronic electricity shortages.

No group immediately claimed the attack. The government is trying to negotiate with the oil militants.