Sudiksha Konanki, 20, went missing from a Dominican Republic beach on Thursday. Joshua Steven Ribe, 24, was the last person to see her alive. Police have not named him a suspect but confirmed he was cooperating with investigators. Her family fears she may have been kidnapped. Authorities believe she may has drowned after entering the ocean in a brown bikini. The Indian Embassy in the Dominican Republic has taken diplomatic charge of the case. The chances of finding her alive are \”minimal,\” says Civil Defence director Juan Salas. The FBI, DEA, Homeland Security Investigations, and University of Pittsburgh police are assisting with the case, authorities say. The family has formally requested an expanded investigation, fearing she was kidnapped. For confidential support call the Samaritans in the UK on 08457 90 90 90, visit a local Samaritans branch or click here for details. In the U.S. call the National Suicide Prevention Line on 1-800-273-8255.