SEOUL: The two Koreas will field a combined women's ice hockey team and march together under one flag at next month's Winter Olympicsinfo-icon in the South, Seoul said on Wednesday, after a new round of talks amid a thaw in cross-border ties.

North and South Koreainfo-icon have been talking since last week -- for the first time in more than two years -- about the Olympics, offering a respite from a months-long standoff over Pyongyang's nuclear and missileinfo-icon programmes, although Japaninfo-icon urged caution over the North's "charm offensive".

The two Koreas will compete as a unified team in the Olympics for the first time, though they have joined forces at other international sportsinfo-icon events before.

North Koreainfo-icon will send a delegation of more than 400, including 230 cheerleaders, 140 artists and 30 Taekwondo players for a demonstration, a joint press statement released by Seoul's Unification Ministry said, adding that the precise number of athletes will be hammered out after discussions with the IOC scheduled for later this week.

Prior to the Games, the sides will carry out joint training for skiers at the North's Masik Pass resort and a cultural event at the Mount Kumgang resort, for which Seoul officials plan to visit the sites next week.

"Under the circumstances where inter-Korean (relations) are extremely strained, in fact just some 20 days ago we weren't expecting North Korea would participate in the Olympics", said Chun Hae-sung, the South's chief negotiator and vice unification minister.

"It would have a significant meaning if the South and North show reconciliation and unity, for example through a joint march".

The North Korean delegation will begin arriving in South Korea on Jan 25, according to the joint statement.

The North will separately send a 150-strong delegation to the Paralympics, Chun said.

'It's not the time'

Twenty nations meeting in the Canadian city of Vancouver agreed on Tuesday to consider tougher sanctions to press North Korea to give up its nuclear weaponsinfo-icon and USinfo-icon Secretary of State Rex Tillerson warned the North it could trigger a military response if it did not choose dialogue.

Japanese Foreign Minister Taro Kono said the worldinfo-icon should not be naive about North Korea's "charm offensive" over the Olympics.

"It is not the time to ease pressure, or to reward North Korea", Kono said. "The fact that North Korea is engaging in dialogue could be interpreted as proof that the sanctions are working."

North Korean leader Kim Jong Un has refused to give up development of nuclear missiles capable of hitting the United Statesinfo-icon in spite of increasingly severe UN sanctions, raising fears of a new warinfo-icon on the Korean peninsula. The North has fired test-fired missiles over Japan.

Icy reception

Seoul has proposed a joint ice hockey team, which triggered an angry response from athletes in the South suddenly being told they may have to play alongside total strangers.

"I don't know if it will happen, but a joint team will be a good opportunity for ice hockey to shed its sorrow as a less-preferred sport as many Koreans will take interest," South Korean President Moon Jae-in told players during a visit to a training centre.

The number of petitions to the presidential Blue House's website opposing a unified team shot up to more than 100 this week, with the most popular one garnering more than 17,000 votes.

"This isn't the same as gluing a broken plate together," said one of the signers.--Reuters