Seventeen survivors were rescued in an operation about 100 miles off the Libyan coast Sunday partially coordinated by the Italian Coast Guard. The incident comes two weeks after another shipwreck off the coast of southern Italy left at least 79 people dead. Italian authorities brought more than 1,000 rescued migrants to Italian shores over the weekend. Regarding Sunday's shipwreck, the Italian Coast Guard said it asked three merchant vessels to respond to the emergency after Libyan authorities notified them that they were not able to. Commercial ships are continuing the search for the missing migrants, assisted by aerial surveillance flights operated by the European border control, Frontex, the Italian Coast Guard said.