Authorities say a massive effort to find two young sisters who went missing on the Pacific island of Saipan last month has failed to bring any leads.
FBI Special Agent Tom Simon said Monday that 10 agents joined local authorities in digging through 30,000 cubic feet of trash at a landfill over the last week. Officials are also bringing in a search and rescue dog from Hawaii on Thursday.
Investigators in the U.S. Commonwealth of the Northern Mariana Islands have been looking for human remains or the girls' backpacks. The girls _ 10-year-old Faloma Luhk and 9-year-old Maleina Luhk _ were reported missing when they didn't come home May 25. They were last seen waiting for their school bus.
Simon says agents believe the girls were likely abducted.