NEW DELHI - Delhi police questioned a former high-flying UN diplomat and Indian government minister late Monday in connection with his wife’s murder, a case that has dominated local media headlines. Sunanda Pushkar was found dead in a five-star hotel room in the capital last January, two days after she alleged on Twitter that her husband Shashi Tharoor had been having an affair with a Pakistani journalist. Pushkar, married to Tharoor since 2010, had been taking medication for various illnesses and early autopsy results suggested she may have overdosed on anti-depressants and sleeping pills.

But earlier this month, Delhi Police Commissioner Bhim Sain Bassi said new medical reports had led investigators to register a case of murder “against unknown persons”.

Television footage late Monday showed 57-year-old Tharoor leaving his New Delhi residence flanked by security guards, pursued by a huge media scrum.