Authorities in California are searching for the teenage child of former Slack chief executive Stewart Butterfield.
Mint Butterfield, the ex-tech co-founder’s child, is considered a runaway, the Marin County Sheriff’s Office said in a statement on Tuesday.
Mint, 16, was last seen on Sunday in Bolinas, about 50km northwest of San Francisco, and reported missing on Monday morning.
Watch the latest News on Channel 7 or stream for free on 7plus
A sheriff’s spokesperson said the search is ongoing.
Mint is believed to be in the Tenderloin neighbourhood of San Francisco, a law enforcement official familiar with the case said.
Mint and her father are estranged, but officials are concerned about making the family connection public, the source said.
San Francisco police are assisting in the search and the sheriff’s office is working with the child’s mother to locate the teen, the agency’s spokesperson said.
Mint’s parents could not be reached for comment.
Mint, who has brown and red curly hair, is about 5 feet (1.52m) tall and has pierced eyebrows.
Mint was last seen wearing a black sweatshirt, flannel pyjama pants and black boots. The teen may have a grey suitcase.
Anyone with information about the teen’s whereabouts is urged to call the Marin County Sheriff’s Office.