The bodies of 20 migrants were recovered from a shipwreck in the Aegean Sea near the Greek island of Evia, authorities reported Wednesday.
The coast guard said dozens are still missing and 12 have been rescued, including a 16-year-old boy.
The migrants include those from Egypt, Afghanistan and Iran.
Survivors said there were 68 people on a boat that capsized Tuesday.
A search and rescue operation is underway.
A distress call was sent to the European emergency number 112 by migrants who were onboard after the boat sank, according to the coast guard.
