Transmission line issues have left over 4,000 customers without power Friday night in the area of Sonora and Norwich along I-70 east of Zanesville.

According to a media representative with American Electric Power (AEP), crews are currently identifying the issue.

Guernsey-Muskingum Electric is also reporting that over 2,170 customers are without power in Muskingum County.

In other parts of Muskingum County AEP and Guernsey-Muskingum Electric share transmission lines, but the AEP media representative was unable to confirm the outages are related at this time.

AEP is currently estimating a 3 a.m. restoration time, however, that time may be adjusted based upon the extent of the damage, and the utilities’ ability to reroute power around the affected areas.