The PFLP military wing claimed it fired three projectiles into Israel on Sunday afternoon, hours after a ceasefire stemming hostilities that killed 10 Gaza fighters since Saturday. An Israeli army spokesman said a mortar shell at 5 p.m. and a rocket at 7 p.m. landed in open areas in the southern Hof Ashkelon area, causing no damage or injuries. The PFLP's Abu Ali Mustafa Brigades said in a statement received by Ma'an that it fired two rockets and two homemade projectiles from Gaza into southern Israel after 4 p.m. The mortar was the first flare up since shortly after 6 a.m. the army spokesman said, when Islamic Jihad agreed to hold a truce in a deal brokered by Egypt. An Israeli airstrike Sunday afternoon killed a leader of the National Resistance Brigades, the armed wing of the DFLP, and injured another man, hours after the deal was reported. In a statement Sunday, the National Resistance Brigades confirmed its member Ahmad Jarkhoun was killed in the Israeli airstrike and called on resistance factions in Gaza to retaliate for "this cowardly crime." Israeli airstrikes on the Gaza Strip killed nine fighters from Islamic Jihad's armed wing on Saturday, and Gaza militants fired a volley of rockets and mortars into southern Israel, killing one Israeli in Ashkelon.