Hamas` military wing, Izz al-Din al-Qassam Brigades, announced that it is no longer committed to the Gaza region ceasefire with Israel.
"There is no longer a lull vis-?-vis Israel, in the face of the ongoing massacre that it commits against the Palestinian people without any justification," the armed faction`s spokesman Abu Obeida said in a statement.
Hamas also urged all Gaza factions to "respond to Israel`s crimes."
Israeli warplanes killed three Palestinians in an airstrike in central Gaza City yesterday, medics said, raising the death toll to 14 in the coastal enclave since a deadly attack in southern Israel on Thursday left 8 Israelis dead.
The latest strike hit a civilian car killing three people from the same family, including a 5-year-old boy and a doctor, Gaza medical official Adham Abu Salmiya said, adding that three others were wounded.
Israel has carried out more than a dozen airstrikes across the Gaza Strip following Thursday`s attack for which it has blamed Gaza-based militant group, the Popular Resistance Committees (PRC), an umbrella organisation of militant factions, although the PRC has denied any involvement.
Gaza based militants have fired a barrage of grad and Qassam rockets on Israel injuring at least eight persons, two critically.