Hamas formally announced the end of its unwritten, often-breached truce with Israel on Friday, citing the ongoing Israeli blockade as well as military moves against the Islamic group.
The Israeli military said two rockets were fired into southern Israel Friday morning and two more after sunset. It said troops guarding Israeli farmers in fields adjoining Gaza also came under sniper fire from across the border. No injuries were reported in any of the incidents.
In a statement posted on its website, Hamas said Israel had breached agreements by imposing a painful economic blockade on Gaza, staging military strikes into the densely populated coastal strip and continuing to hunt down Hamas operatives in the West Bank.
"Since the enemy did not abide with the conditions … we hold the enemy fully responsible for ending the truce and we confirm that the Palestinian resistance factions headed by Hamas will act," the statement said.
There was no immediate Israeli comment about Hamas' announcement that it would not extend the ceasefire past its end Friday.
Israel expressed interest in prolonging truce
Israel has said previously that the six-month-old truce, brokered by Egypt, didn't have an official expiration date and that the government was interested in prolonging "understandings" with Hamas.
In Washington, U.S. Secretary of State Condoleezza Rice was critical of Hamas' move.
"I sincerely hope that there will not be a resumption of the violence because that is not going to help the people of Gaza, it is not going to help the Palestinians, it is not going to help the Palestinian cause," she said.
Hamas seized control of the Gaza Strip in June 2007 from Fatah, a Palestinian faction favoured by Israel and the West. Israel does not officially have direct contacts with Hamas, which it, the United States and several other countries list as a terrorist organization.
Though violence and casualties dropped significantly under the ceasefire agreement, the truce has increasingly unravelled since early November, when Israeli soldiers entered Gaza to destroy a tunnel it claimed could have been used in a cross-border raid.
In response, the Palestinians resumed firing rockets at Israel.
On Thursday, Gaza militants fired 11 rockets and six mortar shells toward Israel and Israel staged at least two air strikes against rocket squads. The day before, at least 20 rockets were fired at Israel, wounding two people and causing property damage, the army and police said.
Global protests against blockade
There were protests against the Gaza blockade in several Mideast states Friday.
In Lebanon, thousands of supporters of the militant group Hezbollah swarmed Beirut's southern suburbs, some chanting "Death to America" and "Israel is the enemy of Muslims."
In the southern city of Sidon, about 1,000 Hezbollah supporters staged a sit-in at the main square, halting traffic for about three hours.
About 3,000 Palestinian refugees in Syria joined a demonstration at the Sbeineh camp outside the capital, Damascus.
In the Persian Gulf island state of Bahrain, security forces clashed with thousands of protesters who were demanding that Arab governments take action to end the Gaza blockade.
Witnesses said a number of people, including women and children, were wounded by rubber bullets and others overcome by tear gas. An interior ministry spokesman, Maj. Mohamad Bin Dina, denied rubber bullets were used and said tear gas was fired when some demonstrators began destroying public property and throwing stones at police.
Meanwhile, an international group opposed to the Gaza blockade said one of its vessels left Cyprus carrying supplies for the Palestinian territory.
The Free Gaza Group has made four previous boat trips to Gaza in defiance of the Israeli blockade. It said the 20-metre yacht SS Dignity was carrying almost a tonne of medicine, baby food and 20 satellite tracking devices to be installed on Palestinian fishing boats.
Poll shows citizens want ceasefire
Even before the truce began fraying, Israel did not allow the free transfer of goods in and out of Gaza. Since cross-border fighting resumed in November, Israel has kept the borders virtually sealed, allowing in only minimal humanitarian aid.
The lull brought about by the Gaza ceasefire had been a relief for people on both sides of the border. A poll published Tuesday indicated that 74 per cent of Palestinians and 51 per cent of Israelis wanted to extend the ceasefire.
The number of casualties and rocket attacks dropped sharply after the truce took hold.
In the first six months of this year, 338 Palestinians and 16 Israelis were killed in cross-border violence, according to Associated Press figures. Since the truce took effect at mid-year, 21 Palestinians have been killed by Israeli fire. No Israelis have died.
Israel says Gaza militants fired just 199 rockets in the final half of 2008, compared with 1,786 during the first six months.