Mediterranean Migrant Drownings Reach Record High as Hundreds Drown off Libya Up to 240 people are thought to have died after two boats capsized off Libya.

 -- The number of migrant drownings on the Mediterranean reached a record high this week as hundreds of migrants are believed to have drowned while leaving the coast of Libya.

The scale of migration across the sea at this time of year has worried migrant organizations which pointed to an unprecedented number of migrant deaths during winter months that typically see far fewer migrants attempting the risky sea crossing.

"We’re seeing more boats launched during a time when previously we wouldn’t have seen many," Itayi Viriri, a spokesperson for the International Organization for Migration, told ABC News in a phone interview. "We’re getting to winter and the seas are getting choppy and yet we’re seeing an unprecedented number of migrants dying."

Up to 240 people are thought to have died after two boats capsized late Tuesday night or early Wednesday morning, bringing the total number of people killed crossing the Mediterranean to about 4,220, the highest annual death toll on record.

According to testimony from survivors, the migrants had been packed onto the rubber dinghies by smugglers, said Viriri. Of the 27 survivors, six were children and 18 were women, some of whom were pregnant. Rescuers brought the survivors to the Italian island of Lampedusa, where three were hospitalized, one in very serious condition.

In previous years, migration across the Mediterranean has typically taken place from March or April until early autumn. "[Migrants] are being told by the smugglers ‘if you’re going to make this journey, make it now,’" Viriri said. "It shows the recklessness of these smugglers, that they’re packing more people onto these boats and launching more journeys. ... That’s why we’re seeing record numbers."