A Chicago school building that opened to students in 1890 is now caked in ice after being gutted by fire.

The Mulligan Elementary School in the Lincoln Park neighborhood was closed in the 2000 and sold by the Board of Education several years later. A developer was converting the building into condominiums.

Firefighters battled the blaze for several hours Tuesday, spraying water that turned to ice in the frigid weather.

The ice also caused problems for public transit. Chicago Transit Authority elevated train service was disrupted for nearly six hours as crews removed ice from the tracks caused by water used to fight the fire.

Authorities say the cause of the fire hasn't been determined. No one was injured.