UPDATE 1.30PM by Hamish Broome at Doubtful Creek:
POLICE have now arrested three people at an attempted blockade of Metgasco's drilling site at Doubtful creek.
More than 120 protestors converged on the site, while about 30 police from across the northern commands, including operational support officers, are in attendance.
Around 12.30pm, 24-year-old social worker from Brisbane, Culley Palmer, was the third person to be arrested while sitting cross-legged in front of a Metgasco-contracted truck.
Earlier, two Githabul elders were arrested in two separate incidences while police secured the site.
Witnesses said one of the men was conducting a Githabul initiation ceremony when he was arrested within the Eden Creek State Forest for allegedly spitting.
Significant parts of Eden Creek State Forest was handed back to the Githabul people under the Native Title Act in 2007.
The other man, elder Kevin Boota, was arrested on Knights Road outside the state forest.
He has since been released by police.
EARLIER 9.30am: A COAL seam gas protest at a Metgasco drilling operation at Doubtful Creek has resulted in its first arrest this morning.
About 7am police from Casino arrested a 38-year-old man who was apparently attempting to block access to the proposed drilling site.
Metgasco workers and contractors were provided access to the site.
Protesters have reported a large police presence of up to 30 officers and government officials, and have put out a call on social media for more support.
A large group is believed to be gathering and according to reports, heavy machinery is arriving at the site.
Yesterday officials closed the adjoining Eden Creek State Forest where protesters had been camping, forcing them to relocate their campsite to another area and move the protest to a nearby road verge.
Protesters are focusing their attention on the drilling rig currently in transit from the site of the recent Glenugie blockade protest south of Grafton where 25 people were arrested last month.
They expect the rig to arrive at Doubtful Creek later this week.
The Northern Star has a reporter and photographer en route to the site.
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