The Asian Infrastructure Investment Bank says it may issue its first U.S. dollar-denominated bond by the end of June. Soren Elbech, treasurer of the Beijing-based multilateral development bank, said the issuance would be at least one billion dollars, maturing in three to five years. He said the bank plans to cap its total borrowing this year at 3 billion dollars. The bank has triple-A ratings from the global credit rating agencies S&P Global Ratings, Moody's and Fitch.