The Air Force has indefinitely delayed plans to fly low-altitude training missions over parts of New Mexico and Colorado.
Officials at Cannon Air Force Base, N.M., said Tuesday they will examine the training requirements for all the base's aircraft and then decide what kind of environmental review process to undergo.
Officials say they hope to complete the examination by early 2013. The environmental review would begin after that.
The Air Force wanted to fly CV-22 and MC-130J aircraft on the low-level training flights. In Colorado, the flights would have been over the southern, southwestern and central mountain areas.
Sen. Mark Udall of Colorado first announced the delay.