The FBI did not identify the person who was arrested.
Police have issued a statewide Amber Alert for a missing teen girl in Indiana.
WSBT reported that, according to a news release from the Lake County Sheriff's Office, a 16-year-old girl named Madison Elizabeth Yancy Eddlemon is believed to be in extreme danger.
Madison was last seen in her own car, according to the Crown Point Police Department. Her vehicle was found abandoned with a window cracked and some of her belongings inside.
The victim is described as a white female who is 5 feet, 1 inch tall and 97 pounds with blonde hair and green eyes. She was last seen wearing a black hoodie with white tribal and blue jeans with tears and shin high boots with a black lace choker.
The suspect is Martin Alexander Curry-Fishtorn, 22. WBBM reports Madison's family filed a protective order against him for stalking the teen, according to police. He is described as a white male, 5 feet,7 inches tall, 158 pounds with brown hair.
Authorities say he has violated the order multiple times.
The public is asked to be on the lookout for a dark gray 2009 Chevrolet Cobalt with Indiana license plate number 645RIS. It is believed to be the suspect's vehicle.
Authorities say anyone who sees Curry-Fishtorn should not approach him but instead call 911 or the Lake County Indiana Sheriff’s Office.