The case of missing Indian-origin student Sudiksha Konanki continues to unravel. The last person to see the 20-year-old, who disappeared in the Dominican Republic, was Joshua Riibe. Authorities have declared the 22-year-old man a ‘person of interest’ and confiscated his passport;

Sudiksha Konanki, a 20-year-old Indian-American student, vanished while on a spring break trip to Punta Cana, Dominican Republic.

Joshua Riibe, who is believed to be the last person to see University of Pittsburgh student Sudiksha Konanki, has not officially been accused of or charged with any wrongdoing.