The rescue operation took place some 105 km off the Tripoli coast, the navy said in a statement later Tuesday.
The rescued immigrants have been provided with humanitarian and medical assistance and taken to a reception center in the city, the statement added.
A total of 424 immigrants, including women and children, have been rescued by the Libyan navy during the past week.
Libya is a preferred point of departure for illegal immigrants who want to go to Europe, fleeing armed conflicts or extreme poverty in their home countries.
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