South Korean Foreign Minister Cho Hyun said his country and the United States had reached a rough agreement on security in tandem with ongoing tariff negotiations, Yonhap news agency reported.

In an interview published on Thursday, Cho also said the U.S. was reviewing a currency swap deal, which was a key demand from South Korea in tariff talks, but signaled it was not optimistic.

Washington had agreed to lower tariffs on imports from South Korea in return for a $350 billion investment package, but follow-up negotiations to hammer out details, including the structure of the investment package, have stalled.