The New Zealand dollar fell as fears about the severity of the China-originated coronavirus drove investors into safe-haven investments such as gold.
The kiwi was trading at 65.74 US cents at 5:05pm in Wellington, down from its Friday close at 66.08 cents in New York and 66.18 cents at this time locally.
The trade-weighted index was at 72.36 points from 72.72. The latest reports on the virus are that at least 80 people have died and closing on 3000 people in China have been infected.
"It looks to be linked to coronavirus headlines more than anything else," said Mike Shirley, a dealer at Kiwibank. "It's a classic risk-off play."
The domestic currency has been the worst performer among global currencies today with the Australian dollar just behind while the yen has been the best performer, Shirley said.