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.

The clothes believed to have been worn by Sudiksha Konanki, the college student who went missing in the Dominican Republic on March 6, were later found on a chaise lounge on the beach, photos show, according to Dominican news outlet CDN.

SCSU student said he tried to save the 20-year-old student who was last seen on March 6 during her spring break trip to the Dominican Republic.

The last person authorities believe may have seen Sudiksha Konanki, the 20-year-old University of Pittsburgh student who vanished while on a spring break trip in the Dominican Republic, was back on the beach — this time with investigators.

A 20-year-old University of Pittsburgh student went missing while on spring break in Punta Cana. Get updates on her case here.

Joshua Riibe is believed to be the last person to have seen University of Pittsburgh student Sudiksha Konanki before she went missing nearly 10 days ago.