Environment Canterbury is responding to a report of a factory wastewater spill at Saltwater Creek in North Canterbury.

The organisation said it had reports of a large discharge from a factory east of the Ashley township.

The spill appears to have stopped.

The wastewater is a product of the processing of timber, and is toxic to fish and other aquatic life.

“So far we know bullies and tuna/eels are affected.

People and animals should avoid contact with water in Saltwater Creek and the estuary – and should not fish, whitebait or harvest mahinga kai” a spokesperson said.

If you see affected wildlife, do not touch it – call  0800 765 588.

An incident response team is on its way to the scene. An update will be provided once the team has assessed the site.