A bailout continues, but the bodies of three children were retrieved, said Libyan naval spokesman Ayoub Qassim.
The International Organization for Migration said that so far only 14 migrants have been rescued.
"The bodies of three children under the age of five have been found, but we do not know yet how many are dead or dead," IOM spokeswoman for Libya Christine Petre told CNN.
Doctors are on-site medical assistance was provided, and additional staff was deployed, Petre said. "IOM provides humanitarian direct assistance at the disembarkation site, including water and food," she said.
Separately, 345 migrants were sent back from the Libyan Coast Guard to the Libyan coast on Friday, according to IOM.
EU – "Waivers"
The aid organization Doctors Without Borders (Médecins Sans Frontières) pushed the EU Heads of State and Government on Friday to show "a certain decency" rescue operations for people in distress – and then bring them to a place of security instead of Libya.
"EU Member States are foregoing their responsibility to save lives and deliberately detain vulnerable people in Libya at sea," said Karline Kleijer, head of emergency aid for the relief group.
"They are fully aware of the extreme violence and ill-treatment of refugees and migrants in Libya."
The Italian Prime Minister Giuseppe Conte has on Friday welcomed the deal of the Council of Europe is no longer alone.
The proposed "regional disembarkation platforms" would be in North African countries like Libya, with the aim of bringing the business model of traffickers who bring migrants across the sea to Europe, but it is not yet clear if these countries will be able to or willing to operate such a system.
The heads of state and government of the EU declared I also stand ready to step up efforts to prevent smugglers from Libya or elsewhere, including increased support for the Libyan Coast Guard and the Sahel region, through which many Sub-Saharan African migrants travel on their way north.
In addition, the agreement includes more money for Spain and Morocco to repel migrants arriving via the eastern Mediterranean route.
Despite the Dangers Thousands of migrants – many fleeing conflicts, poverty or oppression – continue to risk their lives on crowded and barely seaworthy boats, hoping to find a better life on European coasts.
During illegal border crossings into the EU by 95% from its peak in October 2015, there has recently been an increase on certain routes across the Mediterranean, said the European Council.