India, Feb. 11 -- The law enforcement presence on Annie Guthrie's street has been progressively increasing since the arrival of search and rescue units on Tuesday afternoon, which was 10 days after her mother, Nancy, was last seen, NY POST reported, citing neighbors.

Two armored SWAT vehicles from the Pima County Sheriff's Department appeared on the street shortly after 6 p.m., while additional search and rescue trucks were stationed nearby, stated Fox News' Michael Ruiz.

Moreover, federal agents have been conducting door-to-door inquiries in search of any information regarding Nancy's disappearance.

Ann Adams, 65, who has resided in a house around the corner from Annie Guthrie and her spouse, Tommaso Cioni, for eight years, informed T...