An electrical power outage that affected network connectivity impacted most of Oakland Monday night.

At 6:47 p.m., the outage impacted several locations in Oakland, including 3512 Fifth Avenue, 3602 Fifth Avenue and the Loeffler Building. The outage spread to most of Oakland about half an hour later.

Duquesne Light is investigating the outage and Pitt’s Computing Services and Systems Development is working to restore network connectivity.

Duquesne Light estimates repair will be done by 9:30 p.m.