Greek authorities have recovered the body of a man and rescued 39 migrants from the sea after a boat capsized near the southern Mediterranean island of Gavdos, the coast guard said.
Many people are still missing, according to eyewitnesses, and the Coast Guard launched a search operation on Saturday with the help of ships and aircraft.
An Italian frigate and helicopters were operating at the site, with more ships heading to the area.
In separate incidents on Saturday, a Maltese-flagged cargo ship rescued 47 migrants from a boat about 40 nautical miles (74 km) off Gaudos, while a tanker about 28 nautical miles (52 km) from the island. A further 88 people were rescued.
According to initial information, Coast Guard officials believe that these boats had left Libya together.
Greece received nearly one million migrants from the Middle East, Africa and Asia in 2015-2016, most of whom took the perilous route of crossing the sea on speedboats.
Similar shipwrecks from Crete and Gaudos, which are relatively isolated in the central Mediterranean, have increased over the past year.
According to the Migration Ministry, Greece has seen a 25 percent increase in the number of people fleeing war and poverty entering this year, with a 30 percent increase in Rhodes and the southeast Aegean.
Several similar fatal accidents have occurred in recent weeks.
In late November, eight people, six of them minors, died on a route north of the island of Samos, often used by people smugglers.