Australian Prime Minister Malcolm Turnbull has activated a disaster response plan after a powerful cyclone pummelled the north-east coast. Cyclone Debbie caused major damage, torrential rain and power cuts to tens of thousands of homes. Defence force helicopters and naval vessels carrying aid are to be despatched to Queensland. <br/><br/>Mr Turnbull said one death has been confirmed. He said emergency crews are yet to assess the damage. Cyclone Debbie made landfall between Bowen and Airlie Beach as a category four storm, whipping gusts of up to 263 kilometre per hour. It is moving inland as a tropical low storm but could cause more damage.<br/><br/>Mr Turnbull told Parliament that his government will ask insurance companies to be compassionate and supportive of people who had claims to make following the cyclone.