The UN envoy to Libya Ghassan Salame has told French newspaper Le Monde that the UNSMIL has documented intensified non-Libyan drone activity in the Libyan airspace recently.

Salame, in an interview on Monday, indicated that there are also several planes coming frequently from Syria to Benghazi, adding that the UNSMIL doesn't know what was on those planes.

He also explained that the Libyan Presidential Council's government had requested the support of Turkey in response to the presence of Russian mercenaries fighting for Khalifa Haftar's forces on Tripoli frontlines.

"There are multinational mercenaries, including Russians, coming to help Haftar's forces. There are indeed countries that support the war in Tripoli." Salame remarked.

He told Le Monde as well that some member states of the Security Council are violating the Security Council's arms embargo in Libya.

Since April 04, Haftar's forces have been leading an offensive against Tripoli in a bid to take control of the capital from the Libyan Presidential Council's government, yet making little progress as they remain positioned on the outskirts of Tripoli.