A string of automobile break-ins Wednesday and Thursday has led the Hopkinton Police Department to suspect an “active and organized theft ring.”

“The vehicle thefts appear to have been committed by a group that targeted Hopkinton and Holliston,” stated HPD Lt. Scott van Raalten in an email to the Independent on Friday. “We had three vehicles broken into and one stolen.

“Holliston also had several vehicles broken into and one vehicle stolen,” he continued. “Both vehicles were recovered in Worcester [Thursday] mid-morning. At this time, we do not have any suspects but are working through neighborhood surveillance cameras.”

According to an HPD Facebook post Friday, the Hopkinton incidents occurred near the Holliston border, near Sterling Drive and Pendulum Pass.

“The initial investigation indicates that this is an active and organized theft ring,” the post stated.

It added that the Holliston Police Department has “taken reports of similar style break-ins in that area.”

HPD requested that “residents in the area review their home security cameras in attempts to identify potential suspects and suspect vehicles” to aid in the investigation. Any suspicious activity should be reported to the police.

In addition, HPD reminded residents not to leave valuables in their cars and to lock their vehicles.

This investigation is ongoing.