The Chicago Sun-Times

CHICAGO — A firefighter was injured fighting an extra-alarm blaze at an Upton apartment building early Friday on the North Side.

Eight people, including two children, were displaced.

The fire started about 12:40 a.m. at a four-story apartment building at 4505 N. Malden St. and was elevated to a still-and-box and then a two-alarm blaze, Fire Media Affairs spokesman Richard Rosado said.

The fire was contained to the fourth floor of the new construction building and was controlled at 2:02 a.m., Rosado said.

Rodriguez said the fire started on the third floor in the rear and affected six units. Six adults and two children were displaced, Rosado said.

A firefighter suffered heat exhaustion and was taken to Weiss Memorial Hospital, Fire Media Affairs Deputy Director Eve Rodriguez said.

The entire building had working smoke detectors, Rodriguez said.

The cause of the fire remained under investigation early Friday.