Layne was arrested on suspicion of felony transportation of a firearm inside of a vehicle, according to jail records in Lake County, Ohio. He was also charged with two misdemeanors -- driving with a suspended license and exceeding speed limits. Layne was booked just after 3 a.m. Friday.
Police said they initially stopped Layne for going 89 mph in a 60 mph zone.
"We are aware of the incident but still gathering information," the Steelers said in a statement. "We will have no further comment at this time."
Pittsburgh drafted Layne in the third round of the 2019 draft out of Michigan State. The 23-year-old appeared in 16 games last season and had 22 total tackles. Layne's arrest occurred less than 20 miles northeast of Cleveland, where he went to high school.
Layne was granted release on a personal bond. His next court date is scheduled for May 5, according to court records.