Leaders from North and South Korea are to hold a summit, only the second ever between the two sides, officials have announced.

President Roh Moo-hyun will meet North Korea's Kim Jong-il in the North's capital, Pyongyang, from 28-30 August.
The summit comes seven years after the first one, when Mr Kim met then-South Korean President Kim Dae-jung.
That meeting ushered in improved ties and reconciliation between the two sides, who remain technically at war.
This summit comes amid a gradual improvement in North Korea's ties with the outside world.
Last month, the socialist nation shut down its main Yongbyon reactor as part of an international aid-for-disarmament deal aimed at ending its nuclear program.
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The meeting was finally agreed after senior South Korean intelligence personnel made two trips to the North, officials said.
South Korea's presidential office said that the summit would ""contribute to substantially opening the era of peace and prosperity between the two Koreas"".
North Korean state news agency KCNA, meanwhile, said it would be ""of weighty significance in opening a new phase of peace on the Korean Peninsula"".
The two sides will formalize an agenda for the summit at preparatory meetings in the border city of Kaesong, where the two Koreas jointly run an industrial park.
But the two leaders could ""expand military confidence-building measures and prepare the stepping stones to establishing a peace regime on the Korean Peninsula"", said Mr. Roh's security advisor, Baek Jong-chun.
The two Koreas have not signed a formal peace agreement since the end of the 1950-53 Korean War.
The United States welcomed the announcement.
""We have long welcomed and supported North-South dialogue and hope that this meeting will help promote peace and security on the Korean Peninsula,"" State Department spokesperson Joanne Moore said.
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After the landmark summit in 2000, ties between the two Koreas warmed. Joint economic projects began and reunion meetings for families divided by the partitioning of the Korean Peninsula in 1953 were initiated.
Kim Dae-jung won a Nobel Peace Prize for his efforts to engage with Pyongyang, but he was forced to apologize when it emerged that large amounts of cash were sent to North Korea ahead of the talks.
Correspondents say the upcoming meeting will be a boost to the increasingly unpopular South Korean president, who is approaching the end of his term.
Presidential elections are due in December and the opposition Grand National Party -- which advocates a tougher line toward North Korea -- is leading in the polls.
(Source: BBC