The U.S.-led United Nations Command (UNC) and DPRK military authorities are scheduled to meet Tuesday for another round of colonel-level talks over the sinking of a South Korean warship, the UNC said in a statement Monday.

The talks will be the fourth of its kind since the two sides held the first working-level military talks on July 15 to discuss the fatal sinking. Pyongyang has repeatedly denied its role.

The current series of meetings precede general-level talks over the sinking, the UNC said. The two have held 16 general-level talks since 1998 as part of a trust-building measure, and the latest round was held in March 2009.