UPDATE: Authorities say the 2-year-old girl has been safely located in Nebraska.
Thornton Police said Phipps was found in Saline, Neb. by the Nebraska State Patrol. That town is about 45 minutes west of Lincoln, Neb.
Police said the mother was taken into custody.
An Amber Alert has been issued for a missing 2-year-old girl who was reported missing in Thornton Thursday.
Police are looking for 2-year-old Kyley Allison Phipps, who's described as a white girl with brown hair with pig tails and brown eyes. Police said she may be in a 2012 black Nissan Pathfinder with Colorado license plates 204-NKQ.
Police are also looking for 47-year-old Donetta Merle Phipps, who's described as a 5'5 white woman with brown hair and brown eyes. The girl was last seen around noon in the area of 136th Avenue and Holly Street in Thornton, CO.