A $50 million support packge for cyclone-hit businesses and farmers is being praised by Gisborne business leaders, while National says there's a lack of detail regarding financial support.

Gisborne-Tai Rāwhiti Chamber of Commerce president Belinda Mackay said the fund was exactly what businesses had asked for to help them rebuild.

National Party leader Christopher Luxon said the government needed to urgently provide more detail about who will be eligible for financial support and under what conditions.

The death toll from the cyclone remains at 11 and police are still investigating reports of 2246 uncontactable people. More than 4200 people reported as unaccounted for have been found to be safe.

Water restrictions remain in Gisborne and Wairoa residents are still being told to boil their water.

Fibre connections have been restored and cellphone tower coverage is at about 95 percent across the flood damaged regions, though some are still on generators and can only carry phone calls and texts.

The national state of emergency was extended on Monday for a further seven days.

The government also earmarked $250m for the National Land Transport fund's emergency budget to rebuild roads.