The U.S.-led United Nations Command held a third round of talks with North Korean military officials Friday about the deadly sinking of a South Korean warship that has been blamed on Pyongyang.

Both sides sent colonels to the talks at the border village of Panmunjom. No word was immediately available on the outcome of the talks, but a UN Command spokesman said the two sides agreed tentatively to hold another meeting Aug. 9.

Discussions were expected to focus on whether the two sides should form a joint group to assess the evidence involved in the March 26 sinking of the warship Cheonan, which killed 46 South Korean sailors.

Some 20 crew members from U.S. aircraft carrier USS George Washington inspect the wreckage of the South Korean naval vessel Cheonan, at the Second Fleet Command of Navy in Pyeongtaek on July 22, 2010. /AP

An international team of investigators says a North Korean torpedo downed the Cheonan, but Pyongyang denies responsibility. At the last meeting held in Panmunjom last week, the North renewed an earlier request to examine the wreckage of the Cheonan. But the U.S.-led UN Command said it demanded the regime admit responsibility for the sinking. 

It also told the North the attack was a violation of the armistice that ended the Korean War in 1953. The UN Command enforces the armistice.

Friday's meeting comes just after the U.S. and South Korea wrapped up joint naval exercises in the Sea of Japan.

Some information for this report was provided by AFP and AP.