Fiji's acting chief fire officer says the fire service has had to evacuate families in the Western Division as flood waters continue to rise.
The National Disaster Management Office says water levels from heavy rain that began overnight on Thursday look likely to be higher than those in January, when flooding caused extensive damage.
It says all the schools in the district have been closed for the day and all domestic and international flights in and out of Nadi have been suspended.
There are reports that people are being rescued from trees but acting chief fire officer, Qio Moceitai says he has no knowledge of that.
"At the moment all of our stations have been instructed to be prepared for the worst and our fire officers in the Western Division have evacuated community members of two villages in Tavua and also in Lautoka."
Qio Moceitai says people should be proactive and move to higher ground before they get trapped by flooding.