It said that those rescued disembarked safely at the naval base in Tripoli.
Police took one person into custody in connection with the deaths aboard the boat, MRW said.
It said the migrants included 43 people from Mali, 33 from the Ivory Coast, 16 from Guinea, eight from Sudan, three from Senegal and one from Niger.
The news was indirectly released in advance by International Organization for Migration (IOM) spokesperson Safa Msehli, who late Wednesday evening tweeted, "A child and one woman died off Libya today and more than 100 people were intercepted and taken to the limbo of detention. The European walls of silence continue to grow taller". (ANSAmed).