A storm battered central New Zealand on Friday, ​knocking out power to thousands of households, triggering floods and landslides, and bringing air traffic to a standstill in the capital Wellington.

The national forecaster Met Service issued multiple severe weather warnings as a low-pressure system swept across the country.

It warned of ​heavy rain and gusts up to 120kph after recording winds exceeding 150kph in ⁠parts of the country overnight.

The storm forced ​the cancellation of 200 flights in and out of Wellington.

“Most ​flights in and out of Wellington airport have been cancelled today, and most, but not all, scheduled flights this evening have also been ​cancelled,” the airport said. “The winds are forecast to ease ​tomorrow which hopefully will allow flights to resume.”

Air New Zealand confirmed it ‌had cancelled ⁠all domestic flights to and from the capital as well as all flights from the New Plymouth airport.

“Services will only resume when it is safe to do so,” the airline ​said.

Wellington Electricity said ​4,000 customers ⁠had lost power and warned that further outages could occur as wind speeds peaked in the ​evening. The utility said it had earlier restored ​power ⁠to nearly 3,000 customers.

“It may take a few days, possibly into mid next week to restore power to all customers,” ⁠it ​said on its website.

Officials in Lower ​Hutt, northeast of Wellington, reported flooded roads and two landslides, with emergency services ​responding.