SOFIA (Bulgaria), May 25 (SeeNews) – Fitch Ratings said on Wednesday it has downgraded to B+ from BB the long-term Issuer Default Ratings (IDRs) of United Bulgarian Bank (UBB), Eurobank EFG Bulgaria AD (EFGB) and Romania's Banca Romaneasca S.A. (BROM) following a similar rating action on their Greek parents.