NDGJM confirmed the development in a statement by its spokesperson, Aldo Agbalaja.
The militant group said the attack was in fulfilment of its earlier threat to carry out series of coordinated attacks on oil facilities across the Niger Delta region.
NDGJM said, “As a mark of our faith to totally grounding the Nigerian oil economy, the gallant “Opudo” strike forces brought down the Afiesere- Iwhrenene major delivery line in Ughelli North, leading to the UPS/UQCC operated by NPDC/SHORELINES at about 1am today 13th September 2016.
“The Niger Delta is not a conquered territory and our people have never succumbed to intimidation before, rather we match force with the oppressor’s brutality.
“The Nigerian government should already know that the people of this part are not fools, who will not be able to see when they are being treated with disdain.”
Warning people around oil facilities in the region to vacate their residence, the group said, “For the last time, leave these areas if you live around them and if you love your lives.”