Group D is an elaborate residential complex located to the north of the twin pyramids in Group C and northeast of the Acropolis, like the other groups it consists of various structures laid out around a plaza. The group includes two palaces, including one on the west side of the plaza that has been badly damaged by looters. A pyramid is situated on the east side of the Group D plaza. A looters' trench that was cut into the pyramid revealed earlier levels of construction consisting of well made stone blocks, archaeological investigation of the looters' tunnel revealed that the looters had probably plundered a high-ranking noble, or royal, tomb. Items recovered from the looted tomb included polychrome ceramic fragments, 10 pieces of jade beads, 77 pieces of shell beads, 20 jade mosaic fragments, 145 shell mosaic fragments, 98 pyrite mosaic fragments, a shell necklace and a stingray spine. The human bones in the tomb had been painted red. The presence of the royal tomb suggests either that the palaces in Group D were royal residences or those of the priesthood dedicated to the rituals of the dead king.