A fire at the 1800 block of North Sheffield late last night is causing delays for commuters this morning.
Officials say Chicago firefighters were called to the former Mulligan Public School at roughly 1 a.m. on Tuesday to extinguish the flames. No one was injured in the 3-alarm blaze, though neighbors were evacuated from their homes as a precaution.
The cause of the fire has not yet been determined.
For information regarding your CTA commute and updates on potential delays, visit their website here.