Three people have been taken to hospital after being exposed to chemicals in Christchurch.
Emergency services were called to a commercial building in Coleridge Street in the suburb of Sydenham about 3.50pm on Thursday.
Fire and Emergency said seven crews attended and firefighters had to rescue two people from the building.
Nathan Mckinnon
St John said one person was in a critical condition and two others were in moderate conditions.
Fire and Emergency said crews would remain in the area until the site was safe.
Nathan Mckinnon
However, there was no risk to the public.
The affected business recycles paints, cleaning and waste products, and other solvents.
-RNZ