The EU Mediterranean rescue mission says that it has located about 20 bodies in the seas off Libya's coast after a migrant boat sank.
Navy Lt Rino Gentile of the EUNAVFOR operation said that the sinking dinghy was first spotted by one of its aircraft.
Both the Italian coast guard and the Spanish frigate Regina Sofia intervened.
He said some 20 bodies were located in the sea. Earlier, Italian coast guard reported 88 people had been saved.
Italy's coast guard says a migrant boat has overturned off Libya's coast with an unknown number of passengers on board.
Coast Guard Cmdr Cosimo Nicastro said the capsized boat was first spotted by an aircraft participating in the European Union monitoring operation.
The Italian coast guard responded with two rescue vessels to the location some 30 miles off Libya's coast.
Cmdr Nicastro said 88 people had been rescued from the capsized wooden boat.
He said he did not have any information as yet about how big the boat was.
It is one of about 20 search-and-rescue operations under way today.
Cmdr Nicastro said of the eight operations concluded, some 1,000 migrants have been rescued.