CHICAGO (CBS) – A fire at an Arlington Heights apartment building plunged residents into freezing cold overnight.

Smoke was seen rising from a unit in the building at 400 West Rand Road just after midnight. Authorities believe the fire started on the first floor and spread to the second floor.

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A total of 96 apartments were evacuated.

The Arlington Heights Police Department also arrested an 80-year-old man who lived in the apartment where the fire started.

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Police said the man was taken into custody after giving statements to police about the fire. Detectives were reviewing the evidence with Cook County prosecutors, but no charges have yet been filed.

A resident told CBS 2 that the alarms went off around midnight.

“The building over there was completely engulfed, the flames were about 20 feet high,” the resident said.

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Police say while most of the families living in the apartment building were allowed to return home, around a third of the apartments remained uninhabitable after the fire. Police said they would all have temporary accommodation, but the Red Cross is providing support services.