Disrupt Burrup Hub campaigner and veterinarian Marek ‘Maz’ Misiewicz, parked a four wheel drive outside 58 Mounts Bay Road and locked himself to a concrete barrel in the boot, blocking all eastbound traffic through the Perth CBD.

"I am blockading access to the office of federal oil and gas regulator NOPSEMA in the Perth CBD after they waved through seismic blasting, drilling and installation approvals for Woodside’s Burrup Hub late on Friday," Mr Misiewicz said in a statement.

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