New Delhi, Feb. 10 -- The ransom deadline for Nancy Guthrie's family to pay $6 million to the supposed kidnappers who claim to be holding the 84-year-old hostage ended on Tuesday, 5:30 AM IST.

The Bitcoin account given by kidnappers showed zero balance and zero transactions, according to the New York Post.

Three hours before the ransom deadline, Nancy's younger daughter and TV show host Savannah issued another desperate new plea for help - "We are at an hour of desperation".

It's already been about 9 days since Nancy vanished from her Arizona home. She was seen on January 31, when her son-in-law, Tommaso Cioni, dropped her home after having dinner with him and her elder daughter, Annie.

The authenticity of the ransom note has still no...