Google Translate is heuristics-based, and can occasionally produce strange results. For instance, when translating Irish-language text, it will sometimes translate Baile Ath Cliath (Irish for Dublin, the capital of Ireland) to London, the capital of the UK.
This is likely because its corpus for Irish is made up largely of Irish government documents (all Irish govt documents are translated into Irish, but Irish isn't used by many people and there's not all that much else written in it), and these documents are rather similar to British civil service documents.