Hamas islamists
Netanyahu warns Hamas after deadly West Bank attacks
Netanyahu referred to a controversial Gaza ceasefire in November that ended the worst escalation between Israel and Hamas since a 2014 war.
Hamas also said it would end association with the Muslim Brotherhood, a move apparently aimed at improving Gulf Arab states ties.
The ruling party hosted a senior Hamas delegation including its leader Khaled Meshal.
The Israeli military said it held Hamas responsible for any attacks from Gaza.
The grave abuses of international humanitarian law were committed during the 2014 Gaza conflict.
Qais Abu Leila, a senior Palestinian official, said Cairo had proposed an indefinite ceasefire.
Talks in Cairo showed no signs of a breakthrough on Monday, hours before the expiration of a 5-day ceasefire.
Tension has mounted between the two countries over US mediation to end the almost three-week-old war.
Israel will extend a humanitarian truce in the Gaza Strip by a further four hours.
Palestinian medical officials say at least 150 civilians and 31 children have been killed.
Hamas said six of its members were killed in air strikes in Rafah.
Govt has called for the teenagers to be released following their disappearance in Israel 8 days ago.
Hamas has an estimated 20,000 fighters, with another 20,000 in its police and security forces.
Hamas leader Khaled Meshaal visited the Gaza Strip on Friday to end his long exile.
Israel and Hamas leaders ended eight days of conflict, but mistrust is a likely fire starter.
Members of the media have also fallen victim to the Gaza conflict.
Israeli authorities say a rocket fired at Tel Aviv was intercepted by an anti-missile battery.
A wider war looms as Hamas fires rockets into southern Israel after its strikes across the Gaza strip.
Israel killed the military commander of the Islamist group Hamas in a missile strike on the Gaza Strip