Police have sent a distress team to sea to look for the cabin boat which was travelling from Gau to Suva.
"From the information we have, the group left Qarani Village this afternoon around 2.45pm and did not reach its destination yet," police spokeswoman Ema Mua said.
The group consisted of 18 adults and six children. The youngest on board is a 4-month-old baby.
More flooding hit Fiji yesterday after five days of tropical downpours left at least 11 people dead and inundated homes, businesses and farms.
Former Dunedin businessman, Maurice Bradley, cut off at his Fiji home as torrential rains flood the area, has called for more New Zealand Government assistance for the island state.
The $100,000 promised by New Zealand would not feed a nearby town, he said.
But a spokesman for Foreign Affairs Minister Murray McCully said yesterday the Government was keeping a close eye on the situation, and was not ruling out further assistance.
Several hundred New Zealanders are among those stranded after being unable get to Nadi International Airport to catch flights home.
Mr Bradley has lived in Nukuloa, near the township of Ba, on the worst-affected northwest of the island of Viti Levu, for six years.
The Fiji Times reported yesterday residents of Ba were bracing themselves as flood waters continued to rise in the district, and Ba mayor Praveen Bala said without proper water supply and electricity most parts of the district were handicapped in their efforts to clean up.
Mr Bradley said yesterday he was looking out the window at "torrential rain" as a second front hit the island, and 80-knot to 90-knot winds were expected.
The bridge connecting the area in which he lived to the rest of the island had been damaged, cutting off up to 40,000 people.
The local shop had run out of basics such as bread, milk, flour and rice.
He was more fortunate than others, and had enough food to last a week, he said.
A friend who had driven through Nadi, 60km from where Mr Bradley lived, said it looked like "a bomb site".
All the major towns on the west coast of the island had 6pm to 6am curfews to stop looting.
In Ba, which had a population of more than 100,000 people, all the shops had been flooded.
Mr McCully's spokesman said the $100,000 was made as an "initial contribution", and the minister was monitoring the situation, especially as the second front hit.
The Government had continued to provide development aid for Fiji since the coup, with money channelled through non-government organisations, he said.
New Zealanders holidaying in Fiji should stay put in their resorts as rising flood waters continue to cause chaos throughout the country, Prime Minister John Key said.
He said it was "the smart thing to do".
"There are some New Zealanders who are stranded in resorts and they are staying put in those resorts. We are confident that people can get out of Fiji.
"The airport is fully operational and Air New Zealand flights are fully operational," Mr Key said yesterday.
He said sending aid would be considered if needed.
