Power is fully restored to downtown government buildings, schools, a hospital, traffic lights and police and fire halls after a major cable failure caused parts of the city to go dark and renew worries that aging power grids across the USA are hotspots for catastrophe.

All customers of the municipal power system affected by the outage had their power back by 5:15 p.m. on Tuesday.  The exact cause of the cable failure remains unknown.

The outages knocked out electricity to most public buildings, trapping many people in elevators and cutting power to police departments, fire stations, schools, jails and traffic lights.