Grove City Police said a power outage caused traffic lights to out along Stringtown Road Thursday morning.
Police said power was completely restored to the area shortly before 8:30 A.M.
Police said a substation problem caused the outage.
At 6:30 A.M. American Electric Power reported 3,673 outages in Franklin County.
If power is out at a traffic light, that light should be treated as a four-way stop.
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