Fog cannon kept Z Energy employee from harm - police

CCTV image of the suspects.
CCTV image of the suspects. Photo credit: Z Energy/supplied

Police are praising a quick-thinking petrol station staff member who activated a fog cannon during a robbery on Sunday morning.

Around 5am three armed men broke into a Z Energy on Wairere Dr in Hamilton.

The staff member activated the fog cannon, filling the store with glycol - a food-grade oil that creates a thick fog when heated. She then secured herself in a safe room.

The criminals took two cash registers and left in a grey Mazda Atenza, registration KLF25.

CCTV image of the suspects.
CCTV image of the suspects. Photo credit: Z Energy/supplied

"Thankfully, due to the shop attendant's quick actions, no one was hurt," police said in a statement.

They released CCTV images of the suspects. Call Hamilton police on (07) 858 6200 if you recognise the men.

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