BBC comment: The Sunday Times.. The paper's lead story is calls for Treasury Secretary Tulip Siddiq to resign amid "revelations" about her family's finances. Siddiq, who is responsible for tackling corruption in UK financial markets, was named in an investigation into claims her family embezzled up to £3.9bn from infrastructure spending in Bangladesh. A separate investigation by the Sunday Times alleges she lived at properties in London with links to her aunt, Sheikh Hasina, who was deposed as prime minister of Bangladesh last year. It reports that Siddiq has referred herself to the prime minister's standards adviser and insists she has done nothing wrong.