Anders Fogh Rasmussen, the secretary general of NATO, will travel to South Korea this week as tensions with the North continue to rise.
He will arrive Thursday and hold a series of meetings with South Korean president Park Geun-hye, foreign minister Yun Byung-se and defence minister Kim Kwan-jin, reports Yonhap news agency.
It is the first time a NATO chief visits the country.
Meanwhile, the office of Park Geun-hye has described a warning by the North – that foreigners in South Korea should evacuate in case war breaks out – as "psychological warfare", according to Bloomberg.
Through her tears, a North Korean woman told me how she had to escape: risk death while running across the border or die of starvation.
Memories of the Korean war are never far away in South Korea, where residents have grown used to living with the constant threat of war.
North Korea said it will withdraw workers from the Kaesong factory park run jointly with South Korea and suspend all operations there.