LITTLE ROCK, Arkansas - Authorities are searching a landfill in Arkansas as they investigate the death of a Colorado woman whose partial remains were found in Okmulgee earlier this year.

Boulder Police have been looking for evidence in the landfill in Morrilton, Arkansas west of Little Rock since Tuesday.

They said the search is related to the killing of 25-year-old Ashley Mead but didn't elaborate on what they're looking for. They have previously said they were still looking for more remains.

Mead's torso was found in Okmulgee trash container outside a Walmart gas station in February. 

Investigators believe she was dismembered near Shreveport, Louisiana and have said her remains could have been discarded anywhere between there and Oklahoma.

An Oklahoma Highway Patrol trooper found Mead's daughter with the baby's father, Adam Densmore, during a traffic stop in Pawnee County on February 15th. The trooper arrested Densmore on a child custody violation.  

Densmore was then charged with first-degree murder in Mead's death and returned to Colorado.

The Associated Press contributed to this report.