Ousted Bangladesh prime minister Sheikh Hasina’s son and adviser on Tuesday described allegations of corruption involving the family in the 2015 awarding of a $12.65 billion nuclear power contract as “completely bogus” and a “smear campaign”. Bangladesh’s Anti-Corruption Commission said on Monday it had launched an enquiry into allegations of corruption, embezzlement and money laundering in the Rooppur Nuclear Power Plant project, backed by Russia’s state-owned Rosatom. A deal for two power plants, each with a capacity of 1,200 megawatts, was signed in 2015. The commission has alleged that there were financial irregularities worth about $5bn involving Hasina, her son Sajeeb Wazed and her niece and British treasury minister Tulip Siddiq, through offshore accounts. Rosatom, the world’s largest supplier of enriched uranium, refuted the allegations, adding that it was committed to combat corruption in all its projects and that it maintains a transparent procurement system. “Rosatom ...