South Korean President Moon Jae-in told visiting U.S. Defense Secretary Mark Esper on Friday it is difficult for Seoul to share military intelligence with Japan, while vowing to make continued efforts toward security cooperation among the three countries, according to the presidential Blue House.

At their annual Security Consultative Meeting, Moon explained his government's decision in August to not renew the military intelligence-sharing pact with Japan, Blue House spokeswoman Ko Min-jung said.

The General Security of Military Information Agreement, or GSOMIA, expires at midnight on Nov. 22.