Two doctors accused in the death of popular Greek singer Giorgos Mazonakis are expected to appear before an investigating magistrate Monday, as authorities investigate the circumstances surrounding his final hours.

Greek musician Giorgos Mazonakis, 54, died in Athens after a reported cardiac arrest. His official cause of death has not yet been announced.

The Athens Medical Association has launched an investigation into a private doctor’s office in central Athens where Greek singer Giorgos Mazonakis, 54, suffered cardiac arrest…