Chicago police Officer Krystal Rivera was mistakenly shot and killed by a fellow cop during a confrontation with an armed suspect late Thursday, according to police, who continue to hold at least

Police confirmed that the only person who fired a weapon during the chase was an officer, "whose gunfire unintentionally struck Officer Rivera."

Krystal Rivera, a 36-year-old single mother who had spent four years on the force, was rushed to the hospital in a squad car after taking a gunshot wound to the back. The vehicle she was traveling in bizarrely crashed and caught on fire, and she had to be transferred into another vehicle to complete the journey.