Somerville Police Lieutenant Jim Polito shown here directing traffic at the intersection of Medford and Sycamore Streets while Officer Rick Gilberti controls the flow to traffic from the other intersection. - Photo by William Tauro

By William Tauro

The traffic lights stopped working and caused safety concerns at the intersections of Medford and Sycamore Streets early Tuesday morning.

Somerville Department of Public Works crews were repairing the problem as Somerville Police controlled the flow of motor vehicles during the morning drive.

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