Person 'critical' after medical event in Arrowtown

A person has been flown to Christchurch Hospital after suffering a medical emergency in Arrowtown. 

A spokeswoman for Hato Hone St John said the ambulance service was alerted about 11am today and treated one person in a critical condition.

Two ambulances and a helicopter was sent to the scene. 

The patient was then flown to hospital for further treatment.