The United Nations Food and Agriculture Organization holds an emergency meeting, as rising global food prices leave nearly one billion undernourished. Video courtesy of Reuters.

Are we heading towards a global food crisis?

The UN's Food and Agriculture Organisation (FAO) is holding an extraordinary meeting in Rome sparked by global fears about high food prices. Are you concerned?

The meeting will include Russian grain executives. Moscow banned exports after its harvest was hit by drought.

Flooding in Pakistan and China has added to pressure on the market.

Price rises have already sparked riots in Mozambique and are prompting fears of a repeat of the massive price spike of 2007-8.

Global grain prices remain at a two-year high and are still rising.

BBC News - UN holds key meeting on food price concerns