North Korea has sent an open letter to the South calling for reconciliation and an end to what it describes as hostile military acts.
The letter published in North Korea's state media comes weeks before South Korea is due to hold joint military drills with the United States, the BBC reports.
North Korea says the South should not thoughtlessly doubt, misinterpret and rashly reject the sincere, important proposal.
Seoul dismissed an earlier overture as a deceptive propaganda exercise.
Last year, the exercises led to an unusually sharp and protracted surge in tensions, with the North threatening pre-emptive nuclear strikes as nuclear-capable US stealth bombers flew practice runs over the peninsula.