New Delhi: A three-member board of doctors at the AIIMS, who performed the postmortem on Union Minister Shashi Tharoor's wife, Sunanda Pushkar, yesterday, had said the death was "sudden and unnatural".

AIIMS sources today said the doctors have not found any trace of alcohol in the body. But presence of Alprazolam, which belongs to a group of psychoactive drugs used as sedatives, cannot be ruled out. Investigators had recovered an empty strip of Alprax from the hotel room.