CHICAGO (WLS) -- A man was taken to the hospital after a fire on Chicago's North Side Thursday evening.

Chicago fire crews battled a house fire in the 5100-block of North Oakley Avenue in Ravenswood about 5:30 p.m.

Flames could be seen shooting through the home's roof and heavy smoke was visible at one point.

The fire was out before 6 p.m., CFD said.

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The man was taken to Swedish Covenant Hospital in an unknown condition, Chicago fire officials on the scene said.

It was not immediately clear how the fire started.