BRUSSELS (AP) - An international banking clearinghouse says it's ready to implement EU and U.S. sanctions against Iran as soon as it gets some clarification.

The Society for Worldwide Interbank Financial Telecommunication is crucial to Iran's oil sales. The sanction stem from Tehran's nuclear program.

U.N. Secretary-General Ban Ki-moon says it's up to Iran to disprove allegations that it is secretly developing nuclear weapons. Speaking to reporters today after attending ceremonies marking the 15th anniversary of the Comprehensive Nuclear Test Ban Treaty Organization, Ban says Tehran's claims that it has not worked on developing atomic arms are not convincing.

Ban Ki-moon also warns against possible military action against Iran, saying "there is no alternative" to diplomatic pressure in the standoff over its nuclear program.