Unemployment is the world's fastest-rising worry, a BBC World Service survey covering 11,000 people in 23 countries suggests.

The annual poll, called The World Speaks, gave people a list of concerns and asked which they had discussed with friends or family in the past month.

Corruption and poverty still ranked the highest, but unemployment was mentioned by 18% - six times the rate citing it in the first survey in 2009.

The poll was carried out by Globescan.