Police activity at the Clark/Lake CTA station in Chicago’s Loop disrupted some train services on Christmas Eve. Video footage obtained by ABC7 shows a significant police presence at the station around 10:15 a.m. As a result, Kimball-bound Brown Line and Harlem-bound Green Line trains were running but bypassing the Clark/Lake station, according to the Chicago Transit Authority. Chicago police have not yet released any information regarding the incident, and it remains unclear whether any injuries occurred. This is a developing story, and updates will be provided as they become available.