(Fargo, ND)-- Authorities in Fargo and Las Vegas, Nevada are asking anyone who may have information about the disappearance of a 21-year-old Fargo resident to come forward and talk with police. The Grand Forks Herald reports Tanya Skar left her Fargo home in late December heading to Las Vegas. She called her family multiple times or would message them to make sure she stayed in contact. Her sister Charlotte Rusch last spoke to her on January 11th and there's been no contact since. The family is concerned for her safety and there is a missing person's investigation underway in Las Vegas.