Frustrated landowners have dug a huge trench in an access road to projects linked to Papua New Guinea's liquefied natural gas project in Hela Province.
The road runs to the Oil Search Nogoli Gas Plant and the ExxonMobil Gas Conditioning Plant.
Our correspondent said the landowners were believed to have commandeered an excavator and dug up the road early on Tuesday to show their frustration at government delays in making their royalty payments.
He said neither the government or Exxon Mobil had yet commented on the protest action.