CARTHAGE, N.C. (AP) — Two power substations in a North Carolina county were damaged by gunfire in what is being investigated as a criminal act. A spokesman for Duke Energy said at a news conference with local officials on Sunday that the damage caused the night before could take days to repair. Power was out for roughly 37,000 customers Sunday. In response, officials announced a state of emergency that included a curfew from 9 p.m. Sunday to 5 a.m. Monday. County schools will be closed Monday. Moore County Sheriff Ronnie Fields says authorities have not determined a motivation.