Joshua Riibe, 22, was one of the last people to see missing student Sudiksha Konanki, 20, who disappeared over a week ago in the Dominican Republic.

Joshua Riibe, a 24-year-old tourist from Iowa, has come under the spotlight, with investigators naming him a 'person of interest.'

As an international search continued Friday for a University of Pittsburgh student who vanished while on a spring break trip to the Dominican Republican earlier this month, the last person believed to see her told authorities there he tried to save her from waves and thought she had taken her things and left afterward,

The “person of interest” in the disappearance of missing Pitt student Sudiksha Konanki claims he saved them both from drowning before she vanished.

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

Authorities are still searching for 20-year-old college student, Sudiksha Konanki, who went missing in the Dominican Republic last week. TMZ reports that the person of interest in her disappearance, 22-year-old Joshua Riibe has since claimed that he saved her from drowning.

The person of interest in the disappearance of University of Pittsburgh student Sudiksha Konanki claims he saved her from drowning, as police continue to search for clues a week after she vanished during her spring break trip to the Dominican Republic.

Sudiksha Konanki (20), an Indian citizen and permanent resident of the United States, was last seen on March 6 at the Riu Republic Resort in Punta Cana