Nearly 600 people have now landed on the island in the last two days, the Italian news agency ANSA reported.
Italian patrols intercepted a boat carrying 100 people near Lampedusa Friday while a second boat with 100 people had already landed, officials said.
On Thursday, 369 migrants landed on the island, which is closer to Libya than Sicily.
Overcrowded reception facilities on Lampedusa have led to rioting in the past, and officials are bracing for a new onslaught after weather improves.
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