World food prices have hit new records and oil price spikes could push them even higher, the UN food agency warned on Thursday, as unrest in the Middle East and North Africa hits markets.
The Food Price Index, which monitors average monthly price changes for a variety of key staples, rose to 236 points in February from 231 points in January, the UN's Food and Agriculture Organisation (FAO) said.
It was the highest level since FAO began monitoring prices in 1990.
"Unexpected oil price spikes could further exacerbate an already precarious situation in food markets," David Hallam, director of the Rome-based FAO's trade and market division, was quoted as saying in a statement.
"This adds even more uncertainty concerning the price outlook just as plantings for crops in some of the major growing regions are about to start."
Crude prices pushed higher on Thursday amid fighting in oil-rich Libya between Moamer Kadhafi loyalists and rebel forces.
New York's main contract, light sweet crude oil for April delivery, rose to $102.56 and Brent North Sea crude for April was up at $116.65 dollars.
"Persistent uncertainty in the region continues to support fears of contagion," British bank Barclays Capital said in a report.
"Lost output from countries like Libya and the increasing likelihood of a pushback in foreign investment is set to support longer-term prices," it said.
The International Energy Agency said oil exports from Libya had been cut by between 850,000 and one million barrels per day, out of a total of 1.6 million barrels sent mostly to European buyers before the uprising.
Loyalist attacks on the strategic Libyan oil port of Brega, home to major petroleum operations, added to concern, while popular unrest also affects the Arabian Peninsula with protests in Bahrain, Oman and Yemen.
The FAO has warned that rising food prices are driving unrest around the world, including recent uprisings in the Middle East and North Africa.
Aid agencies have called on the international community to take urgent action to put an end to the recent food price volatility.
The G20 group of leading world economies has vowed to take action.
The FAO said the February increase in its Food Price Index was the eighth consecutive monthly rise, with dairy prices up 4.0 percent from January and cereal prices up 3.7 percent due to increased maize demand and lower supply.
The UN food agency said that this was due to "larger use of maize for ethanol production in the United States" and "statistical adjustments to China's historical supply and demand balance for maize."
Meat prices meanwhile rose 2.0 percent from January, while the price of oils and fats rose only marginally and prices for sugar fell slightly.
A breakdown of Thursday's FAO data showed that in China prices for rice and wheat flour stabilised after government assurances on reserves but they remained 23 percent and 16 percent above their levels for February 2010.
The data also showed that coarse grain prices have started to increase in Africa, while in South America prices of wheat and maize are on the increase.
In the former Soviet Union, wheat prices stabilised or decreased.