India, May 31 -- A report by Rob Shuter's Naughty But Nice Substack has claimed that Savannah Guthrie has grown "increasingly frustrated" with the pace of the official investigation into her mother Nancy Guthrie's disappearance. She has now hired private investigators to find her mother.

The report claimed that Savannah is "incredibly upset" after Pima County Sheriff Chris Nanos stopped personally communicating with the family amid the search for Nancy Guthrie. After more than 100 days since Nancy went missing, her family is no longer in contact with the local sheriff.

Nanos previously claimed that all communication with Savannah and her siblings, Annie and Camron, has been through other investigators working the case. Nanos told People...