Three more skulls and other human remains were found on Saturday near the residence of Nithari serial killings suspect Mohinder Singh Pandher as the Central Bureau of Investigation team continued with its investigation into the grisly murders of children and women.

Earlier, police had recovered 17 skulls near Pandher's house. With Saturday's recoveries, the number of victims of the serial killings could go up to 20.

CBI investigators searched the drains near Pandher's D-5, Sector 31 house, and found three skulls believed to be of children and several body parts, including parts of legs and a torso.

Several bones were also found from a drain outside Pandher's house.

The drains from where the CBI team on Saturday found more human remains had not been searched earlier.

The investigators also found several objects believed to belong to the victims, including clothes and chappals, during the search.

The investigators immediately sealed the exhumed human remains in bags and took them away for forensic tests.

The CBI team has been scanning the area since Friday.