(Reuters) – U.S. law enforcement authorities are investigating an alleged bribery scheme involving payments to officials at the United Nations to gain support for real estate developments in Macau, the Wall Street Journal reported, citing people familiar with the matter. The investigation, led by the office of the U.S. attorney in Manhattan and the FBI, centers on alleged bribery by Chinese businesspeople, the newspaper reported. The number of U.N. officials involved in the alleged scheme and their identities were not known, the newspaper said.