Allegedly a collision between a fishing boat with two people on board and a water tanker took place off the shores of Aegina, Greece.
The conditions according to which the incident happened are not clear yet.
The two people on board the fishing boat were collected from the sea unconscious by the crew of the water tanker.
They were rushed to hospital but unfortunately, they were both pronounced dead on arrival.
The incident is being investigated by the Hellenic Coast Guard.