A man injured in a fire while doing demolition work at Marsden Pt oil refinery remained in Whangarei Hospital yesterday.
It was the second day he had spent in hospital after being burned on the arm by a fire at the Refining NZ plant about 4.30pm on Tuesday.
Refining NZ communications and external affairs manager Greg McNeill said there was a fire on a decommissioned platformer unit at the refinery.
He was not sure how many people had been working in the area or how the fire started.
Determining what sparked the blaze would be part of an investigation to be carried out by the refinery's incident management team.