Japan and South Korea have exchanged information on North Korea's nuclear and missile programs for the first time since they inked a military intelligence-sharing pact last month, the South's Defense Ministry has announced.

A ministry spokesman said the direct exchange of classified information, made on the basis of the General Security of Military Information Agreement signed on Nov. 23, took place at a meeting of the two countries' defense officials in Seoul on Friday.

During the Defense Trilateral Talks held later in the day, South Korean, Japanese and U.S. officials agreed to strengthen cooperation and steadily implement sanctions based on U.N. resolutions that were adopted after Pyongyang's fifth nuclear test in September.