(Telecompaper) SoftBank is being investigated by the US Securities and Exchange Commission (US SEC) regulators over allegations about Nikesh Arora's activities before he resigned as president last week, Bloomberg reported, citing sources familiar with the matter. The SEC is looking into whether Arora had conflicts of interest or engaged in questionable behaviour as well as SoftBank's disclosures to investors, said the people, who asked not to be named because the matter isn't public. The opening of an SEC inquiry is typically a preliminary step and doesn't mean SoftBank or Arora, neither of whom have been accused of wrongdoing, will ever face an enforcement action.