A road is sealed off due to downpour in Christchurch, New Zealand, May 30, 2021. Three townships near Christchurch declared states of emergency respectively on Sunday after being badly hit by overnight downpours and floods in the south island of New Zealand. (Photos: Xinhua)

Vehicles run on a flooded road in Christchurch, New Zealand, May 30, 2021. Three townships near Christchurch declared states of emergency respectively on Sunday after being badly hit by overnight downpours and floods in the south island of New Zealand.

Pedestrians wade through water in a street in Christchurch, New Zealand, May 30, 2021. Three townships near Christchurch declared states of emergency respectively on Sunday after being badly hit by overnight downpours and floods in the south island of New Zealand.

Photo taken on May 30, 2021 shows a flooded park in Christchurch, New Zealand. Three townships near Christchurch declared states of emergency respectively on Sunday after being badly hit by overnight downpours and floods in the south island of New Zealand.

A road is sealed off due to downpour in Christchurch, New Zealand, May 30, 2021. Three townships near Christchurch declared states of emergency respectively on Sunday after being badly hit by overnight downpours and floods in the south island of New Zealand.