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.

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,

A video surfaced showing a group proceeding to the beach including Konanki and a 22-year-old Iowa man, who is a student at St. Cloud State University and whom authorities believe was the last person to see Konanki before she went missing.