Egypt's President Abdel Fattah al-Sisi on Sunday met in Cairo with Khalifa Haftar, the commander of eastern-based Libyan forces, who is under worldwide pressure to halt an advance on the capital Tripoli.
While some pro-Haftar media had predicted a quick victory, Tripoli government forces have halted him about 11 km (7 miles) from the center near an airport that was largely destroyed in a previous bout of fighting five years ago.
Coinciding with the Sisi-Haftar meeting in the Egyptian capital, the UN's envoy to Libyasaid on Sunday that the body's position on ending the country's turmoil would "not change".
Since the overthrow and death of dictator Muammar Gaddafi in 2011, Libya has been ruled by rival administrations in the east and west of the vast, oil-rich country.
Egypt has close ties with the renegade general but also publicly supports the UN-led peace efforts in Libya.
Egypt has in the past blamed Libyan-based militants for a series of cross-border attacks against its security forces and minority Christians traveling to remote desert monasteries. Moreover, militias, mostly Islamist, have held sway over large regions, particularly in the west and south of the country.
But Fayez al-Serraj's National Accord government has managed to halt the advance for now, aided by forces with machine-guns on pickups and steel containers across the road into Tripoli.
"The World Health Organization strongly condemns repeated attacks on healthcare workers, vehicles and facilities", WHO tweeted'.
At least 15,700 people have been forced to flee their homes because of the conflict, according to the United Nations Office for the Coordination of Humanitarian Affairs (UNOCHA), with a "significant number" of others still stuck in live conflict zones.
"UNSMIL warns that the bombing of schools, hospitals, ambulances and civilian areas is strictly prohibited by International Humanitarian Law", the Mission said in a statement.
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Mr Potts continued: "At this time we do not believe that there is a relationship between the child or the family of the child". Potts did not offer details about his condition. "The child has been transported to the hospital and has been receiving care".