NEW YORK (AP) -- New York City's medical examiner has performed an autopsy on Russia's ambassador to the United Nations but says the cause and manner of his death need further study.
Spokeswoman Julie Bolcer says the case was referred to the office by a hospital. Vitaly Churkin fell ill in his office and died Monday, a day before his 65th birthday.
The medical examiner's office said Tuesday the death required further study, which normally includes toxicology and other screenings that can take weeks.
The medical examiner is responsible for investigating deaths that occur by criminal violence, accident, suicide, suddenly or when the person seemed healthy, or if someone died in any unusual or suspicious manner. Most of the deaths investigated by the office are not suspicious.