Authorities are also hunting for additional fishing boats that may be using poor migrants for forced labor. Authorities in Papua New Guinea have rescued eight fishermen held on board a Thai-owned refrigerated cargo ship, and dozens of other boats are still being sought in response to an Associated Press report that included satellite photos and locations of slave vessels at sea. Two Burmese and six Cambodian men have been removed from the Blissful Reefer, a massive quarter-acre transport ship now impounded in Daru, Papua New Guinea, about 120 miles north of Australia.