Four suspects are in custody and police are searching for two others Thursday afternoon after an armed robbery led to a large police response and car chase that morning.

Four suspects were detained following an armed robbery at Milos Joyeria in North Andover, with one still at large. Police are conducting an intensive manhunt with state police and FBI assistance.

An officer fired his weapon once, hitting Kelsey Fitzsimmons in the chest. She was flown to a Boston hospital, where she was listed as stable.