A person of interest has been named in the ongoing investigation into the disappearance of 20-year-old Sudiksha Konanki, a pre-med student at the University of Pittsburgh who went missing while vacationing with friends in the Dominican Republic.

A person of interest has been identified in the disappearance of Sudiksha Konanki, a University of Pittsburgh student who vanished while on spring break in the Dominican Republic last week.

Joshua Steven Riibe, 24, has been identified as the man seen hugging and walking hand-in-hand with the 20-year-old student just hours before she vanished in the Dominican Republic.

Indian-origin Sudiksha Konanki, a 20-year-old pre-med student from Chantilly, Virginia was last seen while on spring break with five friends at the Riu Republic Resort in Punta Cana on March 6.Authorities in Virginia have identified Iowa resident Joshua Riibe as a "person of interest" in the case of University of Pittsburgh student who

According to a source involved in the investigation, Riibe, a former high school wrestler with a strong build, has been "cooperative" with authorities.

The footage shows the pair staggering while taking selfies in an early hours walk with pals at the same Domincan resort.

The desperate search for missing University of Pittsburgh student Sudiksha Konanki in the Dominican Republic is ongoing -- and now, authorities in Virginia have zeroed-in on a person of interest.