A Mass. Transit Alert has been issued because Amtrak service is held at a Maskwonicut Street bridge until the MBTA can inspect a bridge, because of an electrical issue. Amtrak representatives are also reportedly on the scene Wednesday night.

"It appears as though there were arcing wires from the Amtrak train that caused some damage to the bridge," Sharon Police Lieutenent John Ford said. "The bridge is closed. We have some Amtrak workers that are going to come out and are going to work with our DPW probably tomorrow morning to take a look at it."

Update: The bridge was still closed as of 10 p.m. Wednesday night.