Protesters have blocked access to Woodside's Burrup Hub in Western Australia, days after the company announced it will go ahead with its controversial Scarborough gas project.
Two women and a man have chained themselves to concrete barrels in vehicles blocking the road that leads to facilities including Woodside's Karratha gas plant and Pluto LNG plant in the Pilbara region.
A car and a caravan was parked across a section of Burrup Road early on Wednesday, leaving a queue of vehicles unable to pass them.
The protesters are vowing to maintain the blockade for as long as possible.
Protester Petrina, a mother and school teacher, said Scarborough would be the most polluting fossil fuel project in Australia.
"I feel compelled to blockade Australia's biggest gas hub for as long as possible because we need to stand with traditional custodians and shut down Scarborough," she said in a statement issued by the Scarborough Gas Action Alliance.
Woodside and WA Police have been contacted for comment.
Woodside is proposing to develop the Scarborough gas field through offshore facilities connected by a 430km pipeline to its Pluto LNG onshore plant.
The Pluto facility will be expanded as part of the development.
Activists have warned Scarborough will produce an additional 1.6 billion tonnes of emissions, "equivalent to building 15 new coal power stations".
There are also concerns about the impact the project will have on heritage-listed Murujuga rock art on the Burrup Peninsula.
Woodside is aiming to achieve net zero direct emissions by 2050 or sooner and has set targets of 15 per cent reduction by 2025 and 30 per cent by 2030.
It insists Scarborough has been subject to extensive review and will deliver one of the lowest-carbon LNG sources in Australia.
The Australasian Centre for Corporate Responsibility this week said Woodside had "declared war on the climate" and the project posed an unacceptable level of risk to shareholders.
