Those who have left include Khaled Jibril, son of Popular Front for the Liberation of Palestine-General Command (PFLP-GC) founder Ahmad Jibril, as well as Palestinian Popular Struggle Front secretary-general Khaled Abdel Majid and Fatah al-Intifada secretary-general Ziad al-Saghir.

Washington, which considers several Palestinian factions to be “terrorist” organisations, last week announced it was lifting sanctions on Syria after earlier saying Damascus needed to respond to demands including suppressing “terrorism” and preventing “Iran and its proxies from exploiting Syrian territory”.

The factions “did not receive any official request from the authorities to leave Syrian territory” but instead faced restrictions and property confiscations, the first Palestinian factional leader said, noting that some factions “were de facto prohibited from operating” or their members were arrested.

The new authorities have seized property from “private homes, offices, vehicles and military training camps in the Damascus countryside and other provinces”, he said.