A man has been critically injured in a stabbing in Christchurch.

Detective Senior Sergeant Leairne Dow said a man was believed to have been stabbed at a property on Picton Ave in Riccarton about 1pm this afternoon.

He was taken to hospital with critical injuries.

Fire and Emergency NZ was also called to the address after a minor fire was reported at the same house.

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Police were currently speaking to a woman who was assisting with inquiries, Dow said.