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.

New surveillance video has surfaced of Sudiksha Konanki, the Pitt student who went missing and disappeared while vacationing in the Dominican Republic.

Dominican police and the Federal Bureau of Investigation are involved in the search for Konanki, a 20-year-old student from the University of Pittsburgh. Police say she disappeared at a beach by the hotel before dawn, as she and other guests had headed outside amid the power outage.