The police presence on Annie Guthrie’s street has been steadily increasing since search and rescue units arrived Tuesday afternoon.
Two armored SWAT vehicles from the Pima County Sheriff’s Department arrived on the street just after 6 p.m., while more search and rescue trucks were parked nearby, Fox News’ Michael Ruiz reported.
Additional FBI agents also swarmed the area, with at least 10 seen fanning throughout the neighborhood.
No tactical gear was seen arriving with the officers, Ruiz reported.
This is a developing story. Please check back for more information.