Arrest Made in Attempted Bombing at Car at Tennessee Assisted Living Center

Bomb found in woman's car failed to detonate when she opened the door.

— -- Federal agents have arrested a man wanted in connection with the alleged attempted bombing of a woman's car at a senior care facility in Tennessee.

Agents from the Bureau of Alcohol, Tobacco and Firearms (ATF) took Mitchell Oakes, 41, into custody at his home in Bledsoe County in Tennessee.

The employee, who has not been identified, called authorities after discovering what police later described as a "sophisticated" device that "would have caused extreme injury or death if it had detonated as intended."

Police told ABC News' affiliate WKRN that Oakes had some sort of prior relationship with the facility employee.

About 60 people living in the facility were moved to another part of the building for safety, according to authorities.

Police said that they planned to have the bomb's components analyzed at the ATF's lab in Atlanta.

Authorities were offering up to $8,500 for information leading to Oakes' arrest, police said. It isn't clear if anyone would be receiving the reward.

Booking, bond, and court date information on Oakes is currently unavailable, police said.

ABC News' Dean Schabner contributed to this report.