At least 31 people lost their lives in three separate shipwrecks over the course of four days last week in the Aegean Sea, and an unknown number are still missing, the UN refugee agency (UNHCR) said on Tuesday.
According to the UN agency, between 21 and 24 December more than 160 people were rescued by Greece's UN refugee agency- with support from the navy and air force, as well as merchant and private vessels.
Commending those efforts, Maria-Clara Martin, UNHCR's representative in Greece, said "it is heart-rending that, out of despair and in the absence of safe pathways, refugees and migrants feel compelled to entrust their lives to ruthless smuggler".
"More resolute action is needed to curb people smuggling and stop those who exploit human misery and despair. It is disheartening to see preventable tragedies like these repeating themselves. We should not get used to seeing bodies being recovered from the sea", she added.
The first shipwreck took place off Folegandros island on 21 December, with 13 people rescued and three male bodies recovered.
One survivor told the Hellenic Coast Guard that as many as 50 people may have been onboard the boat that carried them without any safety equipment.
The second shipwreck, north of Antikythera island, resulted in the loss of 11 lives, while 88 people were rescued.
And on Christmas Eve, a boat carrying at least 80 passengers capsized off the island of Paros, claiming the lives of 17 people, including a baby.
Sixty-three survivors were rescued and brought to Paros, where local authorities and island residents rushed to assist them with blankets, food and clothes.
UNHCR estimates that from January until the end of November this year, more than 2,500 people have died or gone missing at sea in their attempt to reach Europe, through the Mediterranean and the northwestern African maritime route.