Senior military officials from the two Koreas are holding talks for the first time in seven years, South Korea’s Yonhap news agency reports.
The news agency, citing an unnamed source, said the talks began at 10:00 (01:00GMT) on Wednesday at the truce village of Panmunjom in the Demilitarised Zone.
In recent weeks the two Koreas have exchange limited gun fire across both their land and sea borders.
South Korean ministry officials have not formally confirmed the talks.
Yonhap, citing its parliamentary source, said it was because the North did not want the talks made public, according to the BBC.
The two sides last held working-level military talks in February 2011 and general-level talks in December 2007, Yonhap said.
These talks follow two small military incidents across the border that divides the two nations, which remain technically at war.
Last week, gun fire was exchanged after a North Korean patrol ship crossed the disputed western maritime border, South Korea said.
On Friday, there was also an exchange of fire across the land border, something that happens rarely.
South Korea’s Yonhap news agency, citing military officials, said the North fired towards balloons carrying propaganda leaflets that had been launched across the border by South Korean activists.
South Korea responded after some shots landed south of the border, its officials said.
