"The forces of war criminal (Haftar) fired more than a hundred rockets and missiles at residential areas in the centre of the capital Tripoli Saturday", the GNA said in a statement on Facebook.
At least four civilians, including a five-year-old girl, were killed and more than a dozen others wounded in the working-class neighbourhoods of Abu Slim and Ben Gashir south of the city, health ministry spokesman Amin al-Hashemi said.
Dozens of shots targeted Mitiga airport, hitting a civilian aircraft that was preparing to take off to repatriate Libyans stuck abroad due to the coronavirus pandemic, the GNA statement added.
The airport was badly damaged and was the target of further rocket fire on Sunday morning.
An airport source said two civilian planes suffered serious damage.
The United Nations Support Mission in Libya (UNSMIL) called the bombardment "an all too familiar but frightening spectacle".
"These horrifying attacks occur on a regular basis in close proximity to civilian neighbourhoods", UNSMIL said on Twitter.
It called the shelling "one in a series of indiscriminate attacks, most of which are attributable to pro-LNA (Haftar) forces, killing more than 15 and injuring 50 civilians since 1 May".
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