FAIRFIELD - Police are urging Fairfield residents to sign up for an emergency alert system that will contact them in the event of an emergency in the area.

The program is called Code Red, and it allows residents to receive immediate alerts on their cell phones. It is used in severe weather events, and in situations like Saturday's Sunnyridge Avenue standoff, when hundreds of lives were potentially at risk by an armed man who eventually killed himself.

Town officials say roughly 23,000 Fairfield residents have registered on the town's website for Code Red alerts.