RALEIGH — About 12,400 homes and businesses were without power in Southeast Raleigh late this morning, after a safety switch at a substation activated, according to Progress Energy.

The outage began at 11:23 a.m., and workers were able to restore it at 12:13 p.m., said company spokesman Jeff Brooks.

Brooks said a crew was upgrading equipment at a substation in the Caraleigh neighborhood off South Saunders Street when the safety mechanism kicked in. That outage shut down another substation off Martin Luther King Boulevard near East Street, he said, expanding the scope of the outage.