KEYSTONE, Neb. - The Keystone-Lemoyne Fire Department kept busy Monday with two different grass fires in Keith County. 

The first fire was on the north end of Kingsley Dam. Fire Chief Ralph Moul says the fire, which burned just a half acre, was started by a piece of construction equipment at 11:05 a.m. Moul credits the construction crew for helping contain the blaze quickly.

Another fire started along the Union Pacific Railroad a mile east of Keystone at 1:32 p.m. Trees, cattails, willows and poison ivy all caught fire in 104-degree heat. Ogallala, Brule and Paxton Fire Departments assisted at the scene. Area ranchers helped with rigs and a disc.

The Keith County region remained in a red flag warning until 7 p.m. Tuesday. A combination of strong winds, low relative humidity and warm temperatures can contribute to extreme fire behavior.