Farmers in Argentina say they fear big losses this year because of Iran's decision to cancel the import of grain following the diplomatic row between the two countries.

Iran froze trade with Argentina last month, when its diplomats were asked to leave Buenos Aires amid allegations that Teheran was involved in the bombing of a Jewish site in 1994.

Last year Argentina sold $650m of produce to Iran, making it the second-largest importer of Argentine grain, after Brazil.