A leader in Asbat Al-Ansar, one of the warring factions in Ain Al-Hilweh camp, confirmed to Al Mayadeen that the faction is "committed to the ceasefire despite the assassination of Islamist activist Ali Mustafa in the emergency neighborhood, with sniper fire."

The source also confirmed that Asbat Al-Ansar had gotten assurances from Jund Al-Sham that it too will commit to the ceasefire.

Read more: Lebanon's Ain Al-Hilweh clashes intensify after mediation efforts fail

Violent clashes between the Fatah movement and extremist groups ensued for 5 consecutive days in Ain Al-Hilweh camp for Palestinian refugees, in Saida, Lebanon. 

Armed clashes spurred up in the camp after the commander of the Palestinian National Security Forces in Saida, Abu Ashraf Al-Armoushi, was assassinated on Sunday.

An official from the Fatah movement told Al Mayadeen's correspondent that "the assassination of the commander Al-Armoushi had been planned in advance," adding that "the main premise to the solution in Ain Al-Hilweh is the extradition of the one who assassinated the leader, Al-Armoushi."

The Lebanese army confirmed on Sunday that a number of soldiers were wounded by a shell that hit a military barracks in Ain Al-Hilweh refugee camp in Saida, South Lebanon.

In a statement, the Lebanese army said some of its posts and observation points came under gunfire during ongoing clashes in Ain Al-Hilweh.

Read more: Exclusive: MP says Ain Al-Hilweh sedition linked to Israeli escalation