Monday marks 11 days since Sudiksha Konanki, a University of Pittsburgh student, disappeared while on a spring break trip to the Dominican Republic, prompting a widespread search from both U.S. and local authorities by land,

The search for a U.S. college student who went missing in the Dominican Republic intensified on Monday after a man questioned by authorities visited the beach where she was last seen and spoke with officials.

Authorities in the Dominican Republic have confiscated the passport of the man who is the last person known to have been with missing University of Pittsburgh student Sudiksha Konanki, according to a source close to the investigation.

Joshua Riibe, who was seen with University of Pittsburgh student Sudiksha Konanki before she went missing, no longer has his passport, according to his attorneys.

The last person to see University of Pittsburgh student Sudiksha Konanki before she disappeared in the Dominican Republic has had his passport taken by investigators. Authorities in the Caribbean country have confiscated Joshua Riibe’s travel documents as they continue to probe Konanki’s disappearance,

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.

Authorities in Dominican Republic have revoked the passport of the man they have named as a person of interest in the case of missing University of Pittsburgh student Sudiksha Konanki. Officials there are continuing to question Joshua Riibe about the whereabouts of Konanki.