The first Pacific cyclone of the southern hemisphere summer lashed Fiji Monday, with winds upto 150 kilometres per hour, dpa reported.
According to reports from capital Suva, power was cut to the second-largest city Lautoka and heavy rains caused flash floods.
Lautoka had been without electricity since early morning and residents in the cyclone's path were warned to take to high ground to avoid flood waters.
Tourists on offshore island resorts were sitting out Cyclone Mick and waiting for the eye of the storm to pass over, the Fiji Times website reported.
Most of the island country's 20,000 civil servants, except for those likely to be needed for disaster management operations, were told to go home Monday morning.
Director of Meteorology Rajendra Prasad told the Fijilive news website that the cyclone was intensifying and was forecast to pass about 70 kilometres west-northwest of Suva at midnight (1200 GMT).