The US ambassador in Libya Richard Norland said his embassy had noted with concern credible reports that significant military actions were being contemplated by forces affiliated with both Government of National Accord and Khalifa Haftar, warning of renewed clashes in the near future.

"Whether offensive or preemptive in nature, such actions would violate the understandings reached in Berlin." The US embassy said in a statement on Saturday.

It also called on the Libyan parties and on their external supporters to carefully consider the risks inherent in such actions, and to redouble support for the UN-facilitated security dialogue that is meeting in Geneva in an effort to agree on a lasting ceasefire.

South Tripoli frontlines have been seeing sporadic exchanges of fire on a daily basis as Khalifa Haftar's forces continue to attack civilians with Grad Mortar rockets, the last of which a Grad attack on Mitiga Airport in Tripoli on Friday.

Meanwhile, Sirte frontline was seeing heavy military reinforcements by both parties from Al-Wishka and Abu Grein as new violent clashes are expected to take place any moment.