The unidentified flying object, described as a small rocket about two feet long and four inches in diameter, was reported over a Yavapai County neighborhood then landing near the Verde River.

However, searchers have combed the area southeast of Cottonwood and have found no evidence of any flying object, authorities said Friday.

"At this point, the search for the object has concluded," said Scott Reed, a spokesman for the Yavapai County Sheriff's Office.

The rocket sighting was reported by two residents who live on Hogan Lane in Bridgeport, a community between Cottonwood and Cornville, Reed said. The color of the rocket was not reported.

"There were no reports of other suspicious activity in the air," Reed said.

He said that people with information about model rockets being fired in the Bridgeport area are urged to phone Yavapai County sheriff's deputies at (928) 771-3260.

Deputies searched the area Thursday evening, then returned early Friday for another ground search along with helicopter support from the U.S. Forest Service, all with "negative" results, Reed said.

Officials at Luke Air Force Base were advised of the rocket sighting, but base officials have no information to shed light on the mystery, said Mary Jo May, a Luke spokeswoman.

Operations from Luke don't include flight patterns over the Cottonwood area, May said.