STATESVILLE, N.C. (AP) — A North Carolina utility said Tuesday that a substation was damaged by gunfire but that it caused no outages.

EnergyUnited said in a news release that an alarm early Tuesday alerted it to an equipment problem at the substation in Randolph County north of Charlotte. The news release said that crews found damage to the substation from an apparent gunshot and that law enforcement was notified.

The damage comes after a gunfire attack on multiple substations in Moore County that knocked out power to more than 45,000 customers. There was also damage to power equipment in Washington and Nevada in recent months.

“EnergyUnited continually strives to deliver safe, reliable energy to its members,” said Steve McCachern, its vice president of energy delivery. “While we are glad that our members did not experience any service interruptions, we take this matter very seriously and are currently investigating the incident.”

EnergyUnited Electric Membership Corporation serves customers in parts of 19 North Carolina counties.