LAS VEGAS (AP) -- A lightning-sparked wildfire slowed its spread after charring more than 31 square miles in the vast Nellis Air Force bombing range and Nevada Test Site, officals said Wednesday.
''There's been no growth, there was little activity overnight,'' Bureau of Land Management spokeswoman Beth Short said, putting containment of the 21,000-acre fire at 75 percent.
One of the more than 491 firefighters reported an ankle injury fighting the fire in remote, rocky terrain about 80 miles northwest of Las Vegas, Short said.
Air tanker operations were suspended, but five helicopters remained at the fire, which threatened no structures and no current or former nuclear testing facilities, Short said.
Operations at the test site and the surrounding 4,562-square-mile Air Force range weren't affected, officials said.
Above- and below-ground nuclear tests were conducted at the test site from 1951 to 1992. In recent years, it has hosted underground ''subcritical'' experiments designed to test the nuclear stockpile without full-scale nuclear reactions.
Other sections of the site, which is nearly the size of Rhode Island, are used for hazardous materials spill training and Department of Homeland Security counterterrorism exercises.
