Joshua Riibe, the last person seen with missing University of Pittsburgh student Sudiksha Konanki, had his passport confiscated by Dominican Republic authorities as part of an ongoing investigation into her disappearance.

As an international search continued Friday for a University of Pittsburgh student who vanished while on a spring break trip to the Dominican Republican earlier this month, the last person believed to see her told authorities there he tried to save her from waves and thought she had taken her things and left afterward,