Millions have been ordered to evacuate from Florida as Hurricane Irma hones in on the Sunshine State.

A mass evacuation has been ordered for an estimated five million residents .

The storm has already caused huge destruction in the Caribbean. 

Hurricane Irma has so far claimed the lives of 21 individuals. 

The storm was reupgraded to Category 5, the highest category, after previously being downgraded. 

'Based on what we know, the majority of Florida will have major hurricane impact and deadly winds,' said the Governor of Florida Rick Scott.

'We expect this along the entire east coast and west coast.'

'All Floridians should be prepared to evacuate.'