Two Irish teenagers die hours apart on Greek island of Ios

Andrew O'Donnell and Max Wall were part of visiting school group; police are investigating cause of deaths

Greek police are investigating the deaths of two Irish teenagers on the Aegean island of Ios as officers compared the incident to an ancient Greek tragedy.

Tributes poured in Monday for Andrew O'Donnell and Max Wall, both 18, as authorities announced that their bodies would be transferred to the port city of Piraeus near Athens for autopsies to be conducted.