CAIRO — Gaza’s ruling Hamas will not stop arming itself because only a strong arsenal, not negotiations, can extract concessions from Israel, the number two leader of the Islamic militant group said in an interview Saturday.
The comments by Moussa Abu Marzouk, just three days after the worst bout of Israel-Hamas fighting in four years, signaled trouble ahead for Egyptian-brokered talks between the hostile neighbors on a new border deal.
Hamas demands that Israel and Egypt lift all restrictions on the movement of goods and people in and out of the Palestinian territory, which has been buckling under a border blockade since the Islamists seized the territory in 2007. The restrictions have been eased somewhat in recent years, but not enough to allow Gaza’s battered economy to develop.
Israeli officials were not immediately available for comment Saturday, the Jewish Sabbath.
However, an Israeli security official said last week that Israel would probably link a significant easing of the blockade to Hamas’s willingness to stop smuggling weapons into Gaza and producing them there.
Abu Marzouk said Saturday that the group would not disarm, arguing that recent Palestinian history has shown that negotiations with Israel lead nowhere unless backed by force.
‘‘There is no way to relinquish weapons,’’ Abu Marzouk said in his office on the outskirts of Cairo. ‘‘These weapons protected us, and there is no way to stop obtaining and manufacturing them.’’
Hamas’s founding charter calls for Israel’s destruction, but leaders of the group have also said they are ready for a long-term cease-fire with the Jewish state.
The group is believed to have amassed a large arsenal of thousands of rockets since Israel’s last military offensive in Gaza four years ago. Hamas has been smuggling weapons through tunnels under the border with Egypt, but also claims to have begun making longer-range rockets in Gaza.
During the latest round of fighting, Hamas fired Iranian-made rockets that came close to Tel Aviv and Jerusalem for the first time. Israeli warplanes pounded the tunnel area during the offensive to disrupt smuggling, and tunnel operators reported serious damage, but in the past were able to rebuild quickly.
Hamas used to be evasive about Iranian support, but in recent days senior officials in the group have openly thanked Tehran. Gaza strongman Mahmoud Zahar told reporters on Saturday that he is confident Iran will increase military and financial support to Hamas and the smaller militant group Islamic Jihad.
Iran and its regional rivals, the Sunni-led states in the Gulf, have been competing to lure Hamas into their respective camps.
Zahar said Saturday that Hamas is not beholden to anyone, but defended the group’s ties with Iran. ‘‘If they don’t like it, let them compete with Iran in giving us weapons and money,’’ he said in an apparent jab at the Gulf states.
Abu Marzouk, meanwhile, said Hamas would not stand in the way of a bid by its main political rival, internationally backed Palestinian President Mahmoud Abbas, to seek UN recognition for a state of Palestine next week.
‘These weapons protected us, and there is no way to stop obtaining and manufacturing them.’
Abbas will ask the UN General Assembly to approve ‘‘Palestine’’ — made up of the West Bank, Gaza, and East Jerusalem, areas Israel captured in 1967 — as a nonmember observer state.
Such a state is far from being established, but Palestinians hope UN recognition would affirm its future borders, to be used as a baseline once negotiations with Israel resume.
Israel, while willing to cede some land, refuses with withdraw to the 1967 lines and opposes Abbas’s UN move as an attempt to bypass negotiations. Israel has moved half a million Israelis into settlements on war-won land.
Abu Marzouk suggested that Abbas is wasting his time at the UN.
Israel and the West have shunned Hamas, which has killed hundreds of Israelis, as a terror organization. However, Hamas officials believe the boycott is slowly eroding, pointing to U.S. support for the cease-fire deal brokered by Egypt and the ongoing indirect negotiations between Israel and Hamas.