Revellers celebrating New Year and the start of a new decade in New Zealand behaved themselves last night.

One thousand litres of hypophosphorus acid, a key ingredient in P manufacturing, was stolen from a factory in January, it was revealed this week.

Shark sightings have prompted lifeguards at holiday hotspots to urge swimmers to take caution.

More than $50 million worth of prime property is on the market in one of New Zealand's most sought-after seaside streets.