The Democratic People's Republic of Korea (DPRK) on Tuesday warned that South Korean warships trespassed on DPRK territorial waters in the past two weeks and that the intrusions could lead to military conflict, the official KCNA news agency reported.

"Dozens of South Korean warships intruded the territorial waters of the north side from May 14 to 24," said head of the DPRK delegation to the north-south military working talks in a notice sent to the south side.

"This is a deliberate provocation aimed to spark off another military conflict," and "thus push to a war phase the present north-south relations that reached the lowest ebb."

If the south side continues its intrusions into the territorial waters of the north side, the DPRK would take "practical military measures to defend its waters ... and the south side will be held fully accountable for all the consequences," he warned.