(Reuters) – Ukraine is holding talks with Turkey and the United Nations to secure guarantees for grain exports from Ukrainian ports, President Volodymyr Zelenskiy said on Monday. “Talks are in fact going on now with Turkey and the U.N. (and) our representatives who are responsible for the security of the grain that leaves our ports,” Zelenskiy told a news conference alongside Swedish Prime Minister Magdalena Andersson. “This is a very important thing that someone guarantees the security of ships for this or that country – apart from Russia, which we do not trust. We therefore need security for…