Saratoga Springs Police executed a search warrant in Northhampton Tuesday as part of a continuing investigation into a missing person case that's more than 30 years old.

Police are currently working with the New York State Police on the case.

Tammie McCormick, 13, disappeared on her way to school in Saratoga Springs in 1986. The case was reopened in 2010, citing a person of interest who died in 2001 of a heart attack.

Police are asking anyone with information to contact them.