CTA Red Line trains resumed service Friday afternoon after possible animal remains were found on the tracks at the Jarvis Avenue station, police said.
The remains were found about 12:40 p.m. on Red Line tracks in the 1500 block of West Jarvis Avenue, according to Chicago police.
An autopsy revealed the remains were not human, according to the Cook County medical examiner’s office.
An initial investigation suspended Red Line service between Belmont and Howard, according to the Chicago Transit Authority. Yellow and Purple line trains were also standing at Howard Avenue.
Trains began moving again by 2 p.m., according to the CTA.