“Police believe the incidents are linked, and one person is assisting us with our inquiries,” a spokesperson said.
Scene examinations are under way at each of the properties and police inquiries are ongoing to determine what occurred.
“We are currently not seeking anyone else in relation to this matter,” police said.
Anyone with information about either incident which may assist inquiries is asked to contact police via the 105 phone service or online referencing the file number 240923/0552.
Information can also be provided anonymously via Crime Stoppers on 0800 555 111.