LAGOS — Kidnappers freed six Russian sailors and an Estonian who had been abducted from a ship off Nigeria's southern delta, a French oil and gas services company and the military said Thursday. Paris-based Bourbon SA said in a statement that the sailors were in good health despite facing “difficult conditions while in captivity.” The company said the men would leave Nigeria in several days after undergoing medical tests and psychological examinations. The company statement said Bourbon would not take any questions regarding the sailors' release and did not say if a ransom had been paid to free them. — AP