PORTLAND, Ore. (AP) — Portland police are searching for a 2-year-old boy whose mother said she woke up Saturday morning and discovered that the toddler was not in bed with her.

Police say in a news release that many officers have been searching the neighborhood near Rose City Golf Course. Search and rescue teams from Multnomah County Sherriff's Office are also joining the effort.

Police described the boy as very mobile with no known health issues. His name is River.

Officers responded to a call around 6 a.m. Saturday after the boy's mother reported that she woke up to find him missing.