The first sentence in the article states unambiguously: The Præsident of Nicaragua Daniel Ortega received the credentials of the ambassador of South Ossetia. As implausible as it may sound, the embassy of South Ossetia to Nicaragua resides in Tskhinval and the article is about the sojourn (temporary, during a trip) of the ambassador in Managua. I would conjecture that frugality in maintaining embassies to distant countries might have surmounted the disinclination for such a diplomatic insuetude. There are, withal, not just Russians and Georgians who are inquisitive about the diplomatic relations of the Republic of South Ossetia.