Syria's new leader Ahmed al-Sharaa said on Sunday that weapons in the country, including those held by Kurdish-led forces, would come under state control.

Sharaa spoke alongside Turkish Foreign Minister Hakan Fidan, after earlier meeting with Lebanese Druze leaders and vowing to end "negative interference" in the neighbouring country.

Ankara-backed rebels played a key role in supporting Sharaa's Islamist group Hayat Tahrir al-Sham (HTS), which headed a rebel alliance that seized Damascus on December 8, toppling long-time ruler Bashar al-Assad.

During a press conference with Fidan, Sharaa said Syria's armed "factions will begin to announce their dissolution and enter" the army.

"We will absolutely not allow there to be weapons in the country outside state control, whether from the revolutionary factions or the factions present in the SDF area", he added, referring to the Kurdish-led Syrian Democratic Forces.

Sharaa also said "we are working on protecting sects and minorities from any attacks that occur between them" and from "external" actors exploiting the situation "to cause sectarian discord".

"Syria is a country for all and we can co-exist together," he added.

Syria's nearly 14-year civil war killed more than half-a-million people and displaced more than half its population, with many of them fleeing to neighbouring countries, including three million in Turkey.

Turkey has maintained strong ties with Syria's new leaders, and has continued military operations against Kurdish-held areas in northeastern Syria. (AFP)