A person has been flown to hospital after getting into trouble in water in Tūrangi.

The incident happened in a pool on Kutai St about 10.20am, a police spokeswoman said.

A St John spokesman said a helicopter from Taupō was sent to the scene and the person was airlifted to Waikato Hospital in a critical condition about 10.35am.

A Fire and Emergency NZ spokesman said they had been called to a medical event.