The last person to see University of Pittsburgh student Sudiksha Konanki before she vanished had his passport seized by authorities in the Dominican Republic, according to a new report. Officials on the Caribbean island confiscated Joshua Riibe’s travel documents nearly 10 days after Konanki was last seen with the 22-year-old Minnesota college senior on the beach near their RIU Hotel & Resort on March 6.

Interpol has issued a global alert for Sudiksha Konanki, the Pitt student who went missing while on spring break in the Dominican Republic. The Yellow Notice for Konanki comes as officials released more details about the search on Thursday,