A convoy of South Korean trucks carrying the first rice aid to North Korea in three years crossed the peninsula's heavily armed border today in the latest of a series of conciliatory moves between the rivals.
At the same time, officials from both countries met in the North Korean border town of Kaesung to discuss the resumption of reunions of families split by the Korean War which were halted after the sinking of a South Korean warship earlier this year.
Relations between the two Koreas have soured since conservative President Lee Myun-bak's election in 2008, and then sank to their lowest point in decades at the start of the year with the sinking of a South Korean warship, killing 46 sailors.
Former US president Jimmy Carter, who visited Pyongyang last month, said the North was now sending a clear and strong signal to Washington and Seoul that it wanted to restart aid-for-disarmament talks.
Seoul, with Washington's backing, accused Pyongyang of torpedoing its warship in March, and responded with toughened sanctions against its already weak economy and by staging a series of intimidating joint military drills off the peninsula.
Pyongyang denies it sank the South's vessel but there have been signs of a thaw since North Korean leader Kim Jong-il's surprise trip to ally China late last month.
Analysts say Mr Kim went to China in search of economic aid for his cash-strapped economy - still reeling from botched currency reform late last year that triggered inflation and wiped out ordinary people's savings - and to win political support for his son Kim Jong-un's succession.
Compounding the North's woes, severe flooding over the past two months has hit food production that even in a good year falls a million tonnes short of the amount needed to feed its 23 million people.
Seoul this week announced its first substantial aid package to its destitute neighbour in more than two years after flooding killed dozens, destroyed thousands of homes and devastated farmland.
Today, nine trucks carrying rice crossed the border at Paju, the second shipment inside a day after a fleet of trucks loaded with flour headed into North Korea.
Some diplomats and an aid group have said flooding was to blame for the apparent postponement this week of a Workers' Party conference in Pyongyang, which was meant to bring together the North's political elite for the first time in 30 years.
The meeting was widely seen as laying the ground for the eventual succession of the ailing Kim Jong-il's youngest son.
Media reports have also speculated Mr Kim's health or disagreements over a reshuffle of the power structure may have caused the delay. North Korea state media has not mentioned the conference.
In recent weeks, the North has made a series of conciliatory gestures, including releasing a South Korean fishing boat and its crew, as well as an American jailed in the North, and said it wanted to restart the so-called six-party talks joining the two Koreas, the United States, Japan, Russia and host China.
The apparent thaw has prompted the start of shuttle diplomacy between regional nuclear envoys, fuelling speculation of a resumption in the talks, which had been rendered all but irrelevant when the North tested a nuclear device last year.
The allies have resisted calls by Beijing for the resumption of the talks, saying it was up to Pyongyang to show it is genuinely committed to dialogue and cutting tensions.
Mr Carter, who travelled to Pyongyang in August to bring home the jailed American, said he had "received clear, strong signals" that Pyongyang wanted to restart negotiations on a peace treaty with Washington and Seoul, and on the denuclearisation of the Korean peninsula.
"They (North Korea) referred to the six-party talks as being 'sentenced to death but not yet executed'," Mr Carter wrote in the New York Times yesterday.
Reuters