Fewer than five customers are still without power in Mercer County after a transformer explosion as of 9:25 pm.

Mercer County 911 told 21 News at least one transformer exploded at the Quality Inn in Hermitage, and it is possible several others in the Hermitage, Sharon area also blew.

Viewers tell 21 News the entire sky lit up blue during the explosion. 

At one point over 2,000 customers in Farrell, Hermitage, Wheatland Borough, and Sharon were without power.