South Korean President Roh Moo-hyun is scheduled to hold formal talks Wednesday in Pyongyang with reclusive North Korean leader Kim Jong-il.
During the second summit between the two states, still technically at war, the two leaders are expected to discuss North-South relations and economic issues.
Communist North Korea is much poorer than its democratic neighbor, a factor that could complicate any possible reunification of the two states.
Mr. Roh has said his goal for the summit is to encourage inter-Korean peace.
Earlier, on arrival in Pyongyang, Mr. Roh was greeted by thousands of cheering North Koreans holding pink and red flowers. But Mr. Kim was somber as he greeted his South Korean counterpart.
The 2000 visit and the present one are the only inter-Korean summits to have taken place since the Korean War ended in 1953.
The summit is due to conclude Thursday.