https://www.yahoo.com/news/big-las-vegas-casino-hotel-evacuated-due-power-221619036.html
LAS VEGAS (AP) — A contractor knocked out power Thursday to a Las Vegas Strip resort, displacing thousands of guests and gamblers, trapping almost a dozen people in elevators for a time, and prompting a room-to-room search of the 33-story tower looking for stragglers.
The entire Paris Las Vegas, including the casino, restaurants and shops, lost power about 9:45 a.m. when workers in the basement cut into the main power line, Clark County spokeswoman Stacey Welling said.
The incident was called an accident during work that was authorized and scheduled, and there was no indication of sabotage or foul play, Welling said. No injuries were reported.
The full evacuation was ordered after noon, when the fire alarm system battery power ran low and backup generator didn't kick in.
Clark County Fire Chief Greg Cassell said about 3,000 guests and employees were evacuated.