India, Feb. 11 -- The FBI's elite Hostage Rescue Team (HRT) is in Tucson, Arizona to help with the Nancy Guthrie kidnapping case, as per reports. The HRT is assisting Pima County Sheriff's Office in the investigation.

This comes after reports of the sheriff's department mobilizing SWAT vehicles and other personnel to assist in the matter. HRT is FBI's equivalent of SWAT and the highly trained team is intended for tactical operations.

Guthrie, 84, was reported missing on February 1 and authorities believe she was kidnapped from her home the night before. The FBI, today, released footage and photos, showing the potential subject. Since then, there has been reported activity in the Bitcoin account mentioned in the alleged ransom note sent ...