Wellington, Jan 29 (Agencies): Tropical cyclone Wilma stuck the top of New Zealand early on Saturday, causing widespread flooding and landslides which cut highways and power blackouts.

The fire service in largest city Auckland reported more than 400 emergency calls in the 11 hours to dawn, including one after a cliffside house broke onto a beach on Waiheke Island.

Two people were reported stuck up trees for above four hours as rescuers battled floodwaters to try to reach them.

The Northland province was the worst hit by the disaster, though gale force winds and torrential rain also lashed Auckland, the Coromandel Peninsula, Bay of Plenty, Gisborne, the Waikato region, Tauranga and Rotorua.

Police in many areas said roads were impassable and asked people to stay at home. The Met Service claimed the cyclone was moving away from the country to the south-east and conditions would ease throughout Saturday.