The implanted medical device lost contact with NBC News star Savannah Guthrie’s mom’s Apple products around 2 a.m., a law enforcement source told Fox News.

When authorities reached her Arizona home hours later, Nancy’s phone and Apple Watch were still inside the house, the source said.

The disturbing revelations come as the Pima County Sheriff’s Office is expected to address reporters around 11:30 a.m. local time to provide an update after previously telling The Post just hours earlier there were no media appearances planned for Tuesday.

Nancy was reported missing in what law enforcement believe is a possible “kidnapping or abduction.”

Sources told The Post blood and signs of forced entry were found inside her house in the aftermath of the disappearance.

Savannah, the co-host of “Today” has asked fans for their prayers as the family holds out hope.

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