The State Department has confirmed it is assisting in the search for missing University of Pittsburgh student Sudiksha Konanki, whom authorities believed drowned on March 6.

According to Fox News, authorities have interviewed the Northwest Iowa man at length, but they noted he has not been accused of any crime at this time in the case.

The case of missing Indian-origin student Sudiksha Konanki continues to unravel. The last person to see the 20-year-old, who disappeared in the Dominican Republic, was Joshua Riibe. Authorities have declared the 22-year-old man a ‘person of interest’ and confiscated his passport;