6.30am: Tonga Naitonal Emergency Office's Graham Kenna has told Radio New Zealand that power and water are still out in Nuku'alofa, and almost every property has been damaged in some way. He said the storm hitting at low tide had worked in Tonga's favour, as ocean surges could have been an issue at high tide. The wind is still strong, with debris and dangerous pieces of roofing being blown around. The curfew remains in place for another half an hour.
6.21am: NASA's SPoRT centre estimates that gust of wind overnight in Tonga could have been as high as 150 knots - 277kmh.
5.57am: 1 NEWS Pacific Correspondent Barbara Dreaver has confirmed she is OK after the cyclone, although her room has flooded. "A shocking night but we are OK - we are the lucky ones". She has seen unconfirmed reports that a person has died in Fua'Motu.