RENO, Nev. (AP) — Federal land managers are offering a $2,000 reward for information leading to the arrest and conviction of the person or persons responsible for starting a huge wildfire burning in northern Nevada.

Fire officials have confirmed that humans caused the fire that has charred nearly 700 square miles (1,813 square kilometers) of remote rangeland.

The specific cause remains under investigation, but authorities suspect it was started by Fourth-of-July campers the day before it was reported July 5 about 200 miles (322 kilometers) northeast of Reno.

U.S. Bureau of Land Management District Manager Ester McCullogh says investigators have determined it started at about 11:30 p.m. on July 4 about 7 miles (15 kilometers) north of Paradise Valley.

The fire is now estimated to be 65 percent contained.

Anyone with information about the potential crime should contact the agency in Elko at 775-857-3511.