Four South Americans -one Venezuelan and three Colombians, fled Guinea-Bissau, where they had recently let out on probation after their arrest by mid July for alleged traffic of 500 kilograms of cocaine, reported on Monday the Attorney General Office.

"The Venezuelan pilot and the three Colombians managed to leave the country, surely with somebody else as accomplice," said public prosecutor Luis Manuel Cabral, who did not specify the day and time or the circumstances of the rush out, AFP reported.

The aircraft coming from Venezuela was seized on July 12 in Bissau after landing without clearance, loaded with 515 kilograms of cocaine. The cargo vanished afterwards.