Indonesia's top diplomat says North Korea has come up with a "specific and concrete proposal" that could reduce tensions on the Korean peninsula.Indonesian Foreign Minister Marty Nata-legawa met with his North Korean counterpart Ri Su Yong in Jakarta on Wednesday.And while he didn't offer specifics about what the proposal entailed, the Indonesian minister said it involved issues that have been (quote) "preoccupying all of us," (end-quote) including nuclear proliferation, ballistic missile launches and military drills.He also gave no indication of when the proposal might be made.During their talks, Ri also passed along an invitation from North Korean leader Kim Jong-un to the newly-elected Indonesian President to visit North Korea.