ST. JOSEPH — Police are continuing to investigate after four masked robbers broke into an AT&T Store Friday in St. Joseph.

The break-in occurred at about 3:13 a.m. at 1021 Main St. According to the St. Joseph Department of Public Safety, officers located a window to the entrance door that had been smashed out. Four masked suspects entered and exited the store within 40 seconds, leaving with several display items.

Responding agencies included St. Joseph Township Police Department and the Berrien County Sheriff’s Department.

As of Friday, three subjects of interest had been taken into custody in Kentwood. The investigation is ongoing, and no further information will be given at this time.