The FBI said on Wednesday it has arrested a Saudi national employed as an engineer at OpenAI on suspicions that he had bugged a conference room at the company's San Francisco office with a "sophisticated recording device".

US President Donald Trump asked his ambassador to Greece Kimberly Guilfoyle to resign on Tuesday after reports alleged she sought $100,000 from a Trump supporter to pay personal credit card debt and accepted luxury trips and hotel stays from wealthy Greek businessmen. Guilfoyle denied wrongdoing and vowed to defend her reputation.