New North Las Vegas City Hall

Many of the wounded were in their teens to mid-20s, police said.

Beatrice Pilloud, Valais Canton attorney general, said the number of people who were in the bar is “currently totally unknown,” adding that its maximum capacity will be part of the investigation.

While schools, government and banks are closed on New Year’s Day, most major retailers across the U.S. will be open, with many offering discounts on older inventory to clear the way for newer products.