SIOUX FALLS, S.D. -

UPDATE: Shortly after 6 a.m. Wednesday morning the Sioux Falls Police tweeted the children have been located and are safe. Officers would like to thank the public for all their assistance.

Original: The Sioux Falls Police Department is asking for help locating two children. Shortly before 4a.m. Wednesday morning the City of Sioux Falls Facebook page posted these photos.

The children are believed to be with their father, Royce Hamilton.

Due to weather conditions and lack of basic necessities, police are asking for assistance in locating these children. If seen, residents are urged to call police.

Stay with KDLT News for updates.