The announcement was made Thursday by Jennifer Salke, president of NBC Entertainment.
"We all love this thrilling new drama with its sexy breakout cast. We are excited to see it gaining traction on our schedule," Salke said in a statement. "Executive producer Dick Wolf and all the producers have done an amazing job developing a high-stakes series with lots of great heroic characters whose exploits are depicted in Dick's typically epic storytelling style. We are incredibly invested in this one and can't wait to hear about their plans for the rest of the season."
"Chicago Fire" stars Jesse Spencer, Taylor Kinney and Eamonn Walker.