Fiji's national disaster controller is urging the public to take extreme caution ahead of the arrival of a tropical storm in the next 48 hours.
Meleti Bainimarama said Tropical Disturbance 04F was expected to bring heavy rain as it continues to develop into a tropical depression.
A heavy rain alert is currently in force for the whole country, which is still reeling from Cyclone Winston in February with hundreds of people still living in tents.
Mr Bainimarama said there was a 25 to 50 percent chance that a cyclone could form in Fiji waters, and the situation was being closely monitored.
He said people should stay away from flooded drains and waterways, and people who live in flood-prone low-lying areas should remain vigilant.
On Tuesday evening the low pressure system was about 500 kilometres north of Nadi, slowly moving to the southeast towards Fiji's main islands.