After three days of searching the waters and shores near a resort beach in Punta Cana, where his daughter was last seen, the father of 20-year-old Sudiksha Konanki of South Riding has asked Dominican Republic officials to widen their investigation into kidnapping and abduction.

Investigators are still searching for Sudiksha Konanki, a University of Pittsburgh student who went missing while on a spring break trip with her college friends in the Dominican Republic last week.

Authorities have ramped up their efforts by air, sea and land to track down the 20-year-old University of Pittsburgh student who went missing six days ago while vacationing in the Dominican Republic resort town of Punta Cana.

Interpol has issued a global alert for University of Pittsburgh student Sudiksha Konanki who went missing in the Dominican Republic more than a week ago. Police say they're now investigating all possibilities of what could have happened to the 20-year-old.

The Loudoun County Sheriff's Office in Virginia said U.S. investigators interviewed a person of interest at length.

After almost a week, authorities continue the search for Sudiksha Konanki, a University of Pittsburgh student who went missing on a spring break trip in the Dominican Republic last week. The FBI announced on Monday that they would be joining the investigation and Konanki’s local sheriff’s department has sent detectives to the Dominican Republic,