British billionaire Richard Branson has called for a "Marshall plan" to help the Caribbean recover from the devastation wrought by Hurricane Irma, which left tens of thousands homeless and sparked looting on islands left short of food and water.

Irma ripped through the Leeward Islands last week as one of the Atlantic's strongest-ever storms, uprooting trees, tearing down power cables and severely damaging the homes of poor locals and the global jet-set alike. Nearly 40 deaths were reported across the Caribbean.

As the storm crashed into Florida over the weekend, looting erupted on some Caribbean islands where residents and tourists were stranded with little food, shelter or drinking water.