The alert was issued for 9-year-old Ella Lee and 7-year-old Audrey Lee out of Tyler, Texas.
According to a Texas Department of Public Safety bulletin, the girls were last seen at 6 p.m. Tuesday in the 8400 block of Cambridge Road. Police were also searching for a 33-year-old man in connection to their disappearance.
Authorities didn't elaborate on the adult's relationship with the children.
In an update shortly after 10 p.m., the alert was canceled. Further information about where the girls were found was not released.