Updated

Federal wildlife officials say they're ending their investigation into who is responsible for killing 13 bald eagles found dead on Maryland's Eastern Shore earlier this year.

The Baltimore Sun (http://bsun.md/2bfrzB2 ) reports Neil Mendelsohn of the U.S. Fish and Wildlife Service said in a statement that officials intend to close the case "in the near future" because of a lack of evidence linking anyone to the crime. Mendelsohn said in the statement Friday that the eagles discovered in Federalsburg in February were poisoned. Necropsy results had previously ruled out disease.

A man searching for shed deer antlers discovered four of the dead eagles. Officials searched the farm and found nine more carcasses.