By Nigel Hunt and Naveen Thukral

LONDON/SINGAPORE (Reuters) -Grain was flowing out of Ukraine at a record pace on Monday under an initiative led by the United Nations aimed at easing global food shortages despite Russia warning it was risky to continue after it pulled out of the pact.

Russia said on Monday that the deal was hardly feasible as it was impossible to guarantee the safety of shipping after its withdrawal over the weekend following what it said was a major Ukrainian drone attack on its fleet in Crimea.

Other participants, however, were pressing ahead with the deal while France said it was talking to other European Union states about how to boost Ukraine grain exports via land routes.

Ukraine is one of the world’s largest grain exporters and the conflict with Russia led to the closure of its seaports in February, driving up food prices and contributing to a steep rise in acute hunger across the globe.

The deal, signed on July 22, created a safe corridor to allow exports to resume from three Ukrainian ports and helped to ease the crisis with more than 9.5 million tonnes of corn, wheat, sunflower products, barley, rapeseed and soy exported under the pact.

U.N. aid chief Martin Griffiths said on Monday the corridor does not provide cover for military action, adding there were no ships involved in a deal were transiting it on the night of Oct. 29, when Russia says its vessels in the Bay of Sevastopol in Crimea were attacked.

A record volume of 354,500 tonnes of agricultural products was carried on vessels leaving Ukrainian ports on Monday as part of the Black Sea grain deal, a spokesperson for Odesa’s military administration said.

“Civilian cargo ships can never be a military target or held hostage. The food must flow,” tweeted Amir Abdullah, the U.N. official who coordinates the programme.

Russia, however, cast doubts about the future of the pact.

“In conditions when Russia is talking about the impossibility of guaranteeing the safety of shipping in these areas, such a deal is hardly feasible, and it takes on a different character – much more risky, dangerous and unguaranteed,” Kremlin spokesman Dmitry Peskov told reporters.

GREATER RISKS

Lloyd’s of London insurer Ascot said on Monday it was pausing writing cover for new shipments using the Ukrainian grains corridor.

“From today we are pausing on quoting new shipments until we better understand the situation,” Ascot head of cargo Chris McGill told Reuters. “Insurance that has already been issued still stands.”

Marcus Baker, global head of marine and cargo with broker Marsh, said that the change in the risk environment over the last 48 hours was “very significant”.

“Given the change in circumstances it is not surprising that underwriters have taken the decision to suspend the facility until there is greater clarity,” Baker said.

Turkey, which helped broker the deal, remained committed to the deal which involves the inspection of cargoes at a Joint Coordination Centre in Istanbul.

“Even if Russia behaves hesitantly because it didn’t receive the same benefits, we will continue decisively our efforts to serve humanity,” President Tayyip Erdogan said in a speech.

Turkish Defence Minister Hulusi Akar told his Russian counterpart Sergei Shoigu on Monday that Moscow should re-evaluate the suspension of its participation.

GRAIN PRICES CLIMB

Wheat prices rose on Monday, climbing around 5% to $8.71 a bushel in Chicago, but remained far below a peak of $13.63-1/2 set in early March shortly after the conflict began.

The strong pace of wheat exports from Russia, which harvested a record crop this summer, has helped to bolster supplies on the world market.

Consultancy Sovecon on Monday estimated that Russia would export 4.5 million tonnes of wheat in October, up from 2.8 million in the same month last year.

Corn prices rose around 1% to $6.87-1/2 a bushel in Chicago on Monday while soybean oil rose more than 2% to 73.36 cents per lb.

Traders warned that hundreds of thousands of tonnes of wheat booked for delivery to Africa and the Middle East could now be at risk.

“If I have to replace a vessel which was due to come from Ukraine, what are the options? Not much really,” said one Singapore-based grains trader who supplies wheat to buyers in Asia and the Middle East.

Ukraine is also a major exporter of corn and there were concerns that shipments to the European Union were at risk.

“As far as Europe is concerned, corn is a bigger issue than wheat as we are getting into peak season for Ukrainian corn in November,” said one grain trader said.

Analysts warned that although global agricultural commodity prices have come off record highs in recent months, local retail food prices remain high and could now face further upside.

“Typically, it takes about two months for higher grain prices to filter through the supply chain and impact consumers at the retail level,” said a Sydney-based analyst.

“But food processors do not have much forward coverage, so it is likely to be a lot quicker.”

(Repoting by Reuters bureaux, writing by Nigel Hunt, editing by David Evans)

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