An Australian woman on vacation in Las Vegas has not been seen or heard from in three weeks with her friends and family fearing the worst.

Sally Grace Contarino, 26, of Melbourne Australia disappeared after a friend says she sent a message that she was going for a hike on June 20, according to a New York Post report.

Police say she got on a flight and traveled from Melbourne on June 13 and by June 18 she confirmed to a family member that she arrived at her downtown Las Vegas hotel, KLAS reports.

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She was last seen at 9700 West Skye Canyon Drive, according to NYP.

The Australian Consulate in Los Angeles, California contacted Las Vegas Metro Police after Victorian Police in Australia made a missing person report, the local outlet reports.

Las Vegas based non-profit search and rescue organization Red Rock Search & Rescue put out an alert on social media and said Contarino “did not return home as scheduled after a trip that reportedly included stops in Las Vegas, Mt. Charleston and Southern California.”

The organization directed anyone with information to contact police.

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Fox News Digital has reached out to the Las Vegas Metro Police Department.