India, Feb. 14 -- Three people were reportedly detained Friday night, local time, after a SWAT team descended on a home near Nancy Guthrie's Tucson residence, according to the New York Post. The development comes as authorities continue investigating the disappearance of the 84-year-old.

A local police source told Fox News Digital that law enforcement acted on a tip and executed a search warrant at a property roughly two miles from Guthrie's home. Two men and the mother of one of the men were taken into custody, the source said.

The Pima County Sheriff's Department confirmed that law enforcement activity was underway in the Tucson area related to the case. In a statement late Friday, the department said the operation was taking place at...