Palestinian faction leaders jailed in Israel have proposed a series of measure aimed at ending recent factional fighting.
One of the figures linked to the document is Fatah leader Barghouti
A document signed by, among others, leading figures in Hamas and Fatah, calls for the establishment of a national unity government.
It also calls on all factions to limit their armed activities to areas occupied by Israel since 1967.
Palestinian Authority President Mahmoud Abbas has endorsed the document.
Mr Abbas said on Thursday that the document "offers a serious and realistic political vision". He said it should serve as a basis for dialogue between the Palestinian factions.
Behind the initiative are senior Hamas leader Abdelkhaleq al-Natsh, Fatah leader Marwan Barghouti, Popular Front for the Liberation of Palestine's (PFLP) deputy chief Abdelraheem Malluh and Islamic Jihad's Bassam al-Saadi.
The document was presented on Thursday to the executive committee of the Palestine Liberation Organisation, the official Palestinian news agency reported. It is also to be discussed at Palestinian national dialogue conference in late May.
Gunmen from Fatah and Hamas, the main two Palestinian factions, have clashed several times in recent days. Three people have died and many have been injured in the clashes.
Reports from the Gaza Strip on Thursday said that further clashes had taken place. At least four Palestinians have been injured in several separate shootings.
Hamas and Fatah, have blamed each other for the violence.
On Wednesday, Hamas and Fatah announced an agreement to end fighting between them.
They said they were instructing their members not to carry weapons in public, and would treat anyone disobeying as an outlaw.
Tensions between the two groups have risen since Hamas won the Palestinian elections in January.
The recent clashes are seen as the most serious internal Palestinian violence since Hamas defeated Fatah and formed a government. Hamas is in power, but Mr Abbas retains official control over the Palestinian security services.
There are approximately 8,000 Palestinians in Israeli jails. More than 700 are held administrative detention, without trial or charge.