The FBI’s Underwater Search and Evidence Response Team (USERT) out of New York is in Billerica, Massachusetts this week assisting with an FBI Boston investigation. USERT is searching the Concord River for specific evidence in an ongoing investigation. For the safety of the search team and the public, this requires the temporary closure of one lane on the River Street Bridge during active search hours, beginning at approximately 9 a.m. We recognize the traffic disruptions this may cause and are working as expeditiously as possible to complete the operation. We appreciate the public’s patience as we conduct this important law enforcement activity.

In the interest of allaying any public concerns, USERT is not looking for human remains and there is no associated threat to public safety.

As FBI Boston’s investigation is ongoing, no further details will be released at this time.