Evacuations orders were lifted in Nez Perce County on Monday morning after a wildfire broke out on the hillside overlooking Clearwater River Casino, just north of U.S. Highway 95.

Fire crews were working to establish a perimeter around the burn at about 6 a.m., Nez Perce County Emergency Management said on its Facebook page. The fire had burned 1,200 acres by Monday morning, according to the Idaho Department of Lands.

The fire began around 11:30 p.m. and spread along the hillside, potentially due to a lightning strike, Nez Perce Tribe spokeswoman Kayeloni Scott said.

The Clearwater River Casino, nearby RV park and residential areas, about five miles east of Lewiston, initially were evacuated and that portion of U.S. 95 closed after midnight. The road reopened at about 5 a.m., Scott said.