The world's 62 richest billionaires own as much wealth as the poorer half of the population, according to a new report from Oxfam.

Oxfam says that the gap between rich and poor is still vast - and is still growing.

The richest 1% - around 73 million out of the world's 7.3 billion people - now own as much as everyone else put together, said the report, published to coincide with the annual World Economic Forum of global political and business leaders in Swiss ski resort Davos.

Figures from Credit Suisse's Global Wealth Databook 2015 report.

The report found that the gap between rich and poor had widened "dramatically" over the past year.

Source: Oxfam

The total wealth of the poorest half of the world fell by a trillion US dollars (£694bn) since 2010 even though the actual number of people in this group rose by 400 million, said the report.

Meanwhile, the wealth of the super-rich 62 rose by more than half a trillion dollars over the same period to 1.76 trillion (£1.22 trillion).

Oxfam said urgent action was needed to tackle the "inequality crisis" and called on world leaders - including Prime Minister David Cameron - to take action to crack down on tax-dodging by the rich, which denies governments in the developing world billions of pounds a year which could be used on health, education and anti-poverty measures.

Oxfam GB chief executive Mark Goldring said: