Proactiva Open Arms spokeswoman Laura Lanuza says the Golfo Azzurro, a former fishing trawler the group operates, plucked 514 migrants from over a dozen rubber and wooden boats during a 24-hour period from yesterday to today morning.
The people rescued were refugees fleeing the war in Syria and migrants from sub-Saharan Africa who had set sail from Libya, according to Lanuza.
The rescue boat was filled to capacity and headed for an Italian port since the weather was turning bad, she said. The Golfo Azzurro was operating as part of an NGO rescue fleet coordinated by the Italian coast guard.
Hundreds of thousands of migrants and refugees have crossed the Mediterranean Sea in smugglers' boats in hopes of a better life in Europe, but thousands die each year trying. Libya is one of the prime launching points.
Yesterday, a Spanish navy frigate rescued another 651 migrants off the coast of Libya.