Possible human remains found in Wilmington, Delaware, police say

New Castle County police are investigating what they believe to be human remains, including a skull, found in a wooded area in Wilmington, Delaware, this weekend. 

Police said the remains were found Sunday, just before 5:30: p.m., in a wooded area near Ravine Road and Big Oak Lane in the Highland Woods. 

Police say they are waiting for the results from the medical examiner's office. 

New Castle County police said Delaware State Police are investigating another set of remains found about 20 minutes away. State police said, around 6 p.m. Sunday, a passerby reported a possible body in a wooded area along Pulaski Highway, near School Bell Road and Appleby Road, in New Castle. 

Police said the body was found in an "advanced state of decomposition."

There is no word on whether these two incidents are related. 

This is a developing story. Stay with CBS News Philadelphia for updates.