A man has been missing and three people were rescued after a tourist boat sank off the island of Rhodes, in the south-eastern Aegean Sea on Tuesday afternoon.
A big Search And Rescue operation was immediately launched with the participation of vessels from the Greek Coast Guard and Frontex, one aircraft and commercial ships including a cruiser.
According to state broadcaster ERT and local media, the four passengers were Turkish nationals.
All passengers ended up in the water when the vessel capsized in unclear circumstances.
The SAR is still ongoing, however, without positive result, so far.