The Government is expected to announce initial support for Fiji soon, which is likely to include emergency aid funding for the immediate aftermath and Defence Force assistance such as surveillance flights and aid drops.
Australia has also already offered to send Royal Australian Air Force planes to check on outlying islands.
A spokesman for the Ministry of Foreign Affairs and Trade said it has had no reports of New Zealanders injured in the tropical cyclone. There were 310 New Zealanders registered with SafeTravel and he said any who were in Fiji but not registered should do so.
He said New Zealanders who could not contact friends or family in Fiji should not panic because there were communications problems. If there were ongoing concerns, people could contact the Ministry of Foreign Affairs and Trade on 04 439-8000.
"New Zealanders in Fiji should contact family in New Zealand and let them know they are safe but people in New Zealand should realise that if they cannot contact a friend or relative at this stage, it is almost always because of compromised communications after a major event like Cyclone Winston."
He said it could take some time to restore the communications in the worst hit areas, although the cellphone network in the major centres, Suva, Nadi and Labasa, was functioning.
Most flights in and out of Fiji were on hold, and those hoping to leave should contact their travel agent or airline for up-to-date travel information.