Investigators suspect that the spring breaker removed her clothing, leaving it on the lounge chair, before entering the ocean and drowning while wearing a brown bikini.

St. Cloud State senior Joshua Riibe has remained in his hotel room under police surveillance when not questioned at the police station, his parents said.

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.

The search for Sudiksha Konanki, a University of Pittsburgh student who disappeared while on spring break in Punta Cana, Dominican Republic, has taken a heartbreaking turn. Clothing believed to belong to the 22-year-old was discovered on a lounge chair at the beach where she was last seen.

The passport of Joshua Riibes, an American linked to the disappearance of a University of Pittsburgh student, has been confiscated by Dominican authorities as part of an ongoing investigation, his attorneys told NBC News.

The parents of the man who was last seen with Sudiksha Konanki in the Dominican Republic released a statement on Friday.

The man who last saw missing University of Pittsburgh student Sudiksha Konanki told investigators he thought she was OK and had "taken her things and left."