People and nearby homes in Wichita Falls were evacuated after the pipe bomb was discovered Saturday afternoon.
The military canine unit from nearby Sheppard Air Force Base and a bomb squad from Denton arrived to help.
The Wichita Falls Times Record News reports that the area was blocked off for at least five hours.
John Spraggins of the Wichita Falls Police Department says the bomb was secured and nobody was injured.
Authorities have no suspects. The investigation will be led by the Bureau of Alcohol, Tobacco, Firearms and Explosives, and the Wichita Falls police and fire departments.
Wichita Falls is about 130 miles northwest of Dallas and near the Oklahoma border.