Officials in Ohio are continuing to ask for the public's help in the search for a missing 20-year-old woman last seen riding her bicycle.
Sierah Joughin was out riding with her boyfriend Tuesday before the pair parted ways around 6:45 p.m. near Evergreen High School in Metamora, Ohio. The University of Toledo junior was reported missing by her family later that night when she didn't return home.
Her purple bicycle was discovered several rows into a cornfield not far from where she was last seen, Fulton County Sheriff Roy Miller said Thursday. He added that there were signs of struggle.
Sierah's boyfriend, Josh Kolasinski, posted a photo on Snapchat of the two riding together Tuesday night. In it, it appears the young woman is wearing a fitbit fitness band, which authorities are attempting to track. Authorities also said one of the "pings" from Sierah's cell phone was near the Michigan border, several miles from where her bike was found.
Her boyfriend is cooperating with investigators, and is not considered a person of interest.
Given the suspicious nature of the disappearance, the FBI is assisting in the search. Authorities in neighboring states have also been alerted, officials said. Hundreds have also turned out to volunteer to comb the fields, but it's unclear what additional clues have been found. Nearly 2,500 people have also joined the Facebook group 'BRING SIERAH HOME!!' since it's creation earlier this week.
Family members describe Sierah as hardworking and dedicated to her family. She has attended University of Toledo since the fall of 2014 and is studying human resource management, according to the university.
An increased reward of $100,000 is being offered by an anonymous donor and through donations for information brings her home safely.
Sierah Joughin is described as 5'5" tall, weighing 130 lbs., with brown hair and brown eyes. She was last seen wearing shorts and a yellow tank top.
Anyone with any information is urged to call the Fulton County Sheriff's Office at (419) 335-4010, ext. 8. Tips can also be submitted to Crime Stoppers of Lenawee County at (877) 276-8477.