QUITO, Ecuador—Ecuador’s Foreign Ministry says it has formally notified the U.S. Embassy that it will not renew an agreement allowing the U.S. military to operate anti-drug surveillance flights from its Manta air base.

The United States and Ecuador signed the 10-year agreement in November 1999.

The Foreign Ministry said in a statement on Tuesday that U.S. military personnel will have to leave the base once the agreement expires on November 12, 2009.

Some 300 U.S. soldiers are stationed at the Pacific base.

President Rafael Correa has repeatedly said that the agreement would not be renewed.

U.S. military officials have said Washington is not planning to set up an alternative to Manta in either neighboring Colombia or Peru.