The head of the Dominican drug control agency says agents have seized more than a ton of cocaine on an outlying island.

Fifteen bales containing the 1,031 pounds (468 kilograms) of cocaine has been found on Isla Saona after it was dropped from a small plane, according to a statement issued Monday by anti-drug chief Rafael Radhames Ramirez Ferreira.

The seizure is part of a joint operation to cut drug traffic to Hispaniola, the island shared by Haiti and the Dominican Republic. Hispaniola has been a major way-station for South American cocaine headed to the U.S. and Europe.

Radhames says that no arrests were made but agents did intercept telephone calls to determine who was planning to pick up the cocaine.