Several hundred more migrants reached a tiny Italian island before dawn on Monday, swelling to past 2,100 the number of arrivals in some 24 hours.
Italian state radio said four boats arrived at Lampedusa island after being escorted the last miles to port early Monday by Italian coast guard or custom police vessels. The 635 latest arrivals followed more than 1,400 who arrived on Sunday.
Human traffickers often take advantage of calm seas to launch unseaworthy boats toward European shores, The Associated Press reported.
The radio said many people slept on mattresses outdoors after Lampedusa’s migrant housing center, which had been empty until Sunday, had filled up. Hundreds more were being transferred to an unused passenger ferry offshore for quarantine until they can be tested for COVID-19.
Sunday's steady stream of migrant boats arriving at the 20-square-kilometer (about 8-square mile) island, which is closer to northern Africa than to the Italian mainland, was the biggest number of migrants to come ashore in a single day at an Italian port this year.
Il Giornale di Sicilia, a Sicilian daily, said just before midnight a boat dispatched by the port captain's office aided a fishing boat with 352 migrants aboard, some 9 nautical miles (16 kilometers) from the island.
A few hours later, another coast guard motorboat took aboard 87 men in a boat farther out at sea, while successive hours saw more boats and their passengers reach the island, the newspaper said. Among them were at least 13 women and eight children, the daily said.
On Sunday, the island's mayor appealed to the Italian government to deal with the sea migrant issue, and national political leaders chimed in, too.
In recent years there have been similar surges in springtime in the number of migrant arrivals. Several years ago, a few thousand migrants rescued at sea arrived in one day, as more than 100,000 people in some years were plucked to safety from unseaworthy boats, by military vessels, charity ships or cargo vessels.
Italy has insisted, mainly unsuccessfully, that fellow European Union nations take in many of the migrants. Many are fleeing poverty in their African or Asian homelands and are eventually denied asylum.