UPDATE: 5 injured in 2-alarm fire at Chicago's iconic John Hancock Building

John Hancock Buildnig in Chicago (Chris DosSantos photo via WMAQ)

Five people were injured in a two-alarm fire Saturday afternoon at Chicago's iconic John Hancock Building.

The fire broke out inside an apartment bedroom on the 50th floor of the high-rise building, Chicago Fire Department officials said. At least six ambulances were called to the scene, and police closed traffic on North Michigan Avenue.

The five people who were injured all suffered minor injuries, most were smoke related, according to officials. At least one person was taken to Northwestern Memorial Hospital. 

Video of the scene showed flames and smoke shooting from the side of the building.

The Hancock Building's security staff said the building wasn't immediately being evacuated, but they moved people away from the affected floors. Fire officials asked occupants to remain in their units but indicated that many residents chose to leave the building. 

Chicago Fire officials said the fire was under control as of 3:40 p.m (CST), and struck out by 4:00 p.m.

Click here for the latest developments on this story from our NBC station in Chicago, WMAQ.