Christchurch fire crews have worked through the night to contain a chemical leak at KiwiRail's container terminal in Riccarton.
The leak from packaging in a container was reported by a KiwiRail worker just before 11pm.
Six crews went to the scene, and used splash suits in containing it.
Seven firefighters had to undergo chemical decontamination.
There were no flames or smoke from the leak but it took three hours to clean up.
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