Three migrants were found dead in a burnt house in the northern Greek port city of Thessaloniki, fire brigade made the announcement on Wednesday.
Report had it that the three men came from North Africa.
The building in which they lived was in a deplorable condition and was uninhabited, local media reported.
The police suspected that the men died of smoke inhalation.
However, a spokesperson for the fire brigade said that this would be clarified by the forensic department.
Many migrants and refugees lived in abandoned buildings in major Greek cities. (dpa/NAN)