A leftist armed group said its forces fired a rocket from Gaza into southern Israel on Friday, hours after a dawn ceasefire deal was announced by Gaza factions. The Popular Front for the Liberation of Palestine's armed wing said it fired a Grad rocket at Ashkelon. The attack caused no damage or injuries, the Israeli news site Ynet reported. The Abu Ali Mustafa Brigades said it fired the rocket in response to "Israeli crimes." The group was the only armed faction in the Gaza Strip to reject a short-lived ceasefire deal agreed Sunday by Hamas and others. Hamas' armed wing and militants aligned with Islamic Jihad had agreed. Two members of Islamic Jihad's military wing were then killed in an Israeli attack days later; the barrage of airstrikes and rockets launched from Gaza shattered the ceasefire. A new ceasefire was declared early Friday by Islamic Jihad following the renewed violence.