Palestinians carry the bodies of members of the Kaware family that hospital officials killed in an Israeli air strike on their house, during their funeral in Khan Younis in the southern Gaza Strip July 9.

GAZA CITY — At least 90 Palestinians, most of them civilians, have been killed in Israel’s Gaza offensive, Palestinian officials said on Thursday, July 10, as militants in the enclave kept up rocket attacks on Tel Aviv, Jerusalem and other cities.

As Israeli officials seemed to hint at a possible invasion by ground forces, eight members of one family, including five children, were killed in an early morning air strike that leveled two homes at Khan Younis in the south of the Gaza Strip near the Egyptian border, the Palestinian Health ministry said.

Israel’s military made no comment on what would be the deadliest strike since its began its assault on Tuesday. The defense minister spoke of “long days of fighting ahead.”

French President Francois Hollande voiced his concern at the civilian deaths in the Palestinian enclave and called for a truce. A spokeswoman for U.S. Secretary of State John Kerry, who, like Hollande, spoke to Palestinian President Mahmoud Abbas, said of possible escalation: “Nobody wants to see a ground invasion.”

The offensive followed a build-up in violence after three Jewish students were killed in the occupied West Bank last month and a Palestinian was burned alive in a suspected revenge attack.

Medical officials in Hamas-dominated Gaza said at least 60 civilians, including a four-year-old girl and a boy aged five who were killed on Thursday, were among the 90 Palestinians who have died in Israeli attacks since Tuesday.

Israeli Prime Minister Benjamin Netanyahu said in a televised statement: “So far the battle is progressing as planned but we can expect further stages in future. Up to now, we have hit Hamas and the terror organizations hard and as the battle continues we will increase strikes at them.”

Netanyahu discussed options with his security cabinet as air strikes continued and officials hinted at a possible ground offensive. There was no word on when or if this would happen.

“We have long days of fighting ahead of us,” Defense Minister Moshe Yaalon said.

Sirens sounded in and around Jerusalem in the evening and residents ran for cover as a number of rockets were launched towards the holy city. Two were intercepted and others fell in open ground. The remnants of one rocket fell on a building in an Israeli community in the hills near Jerusalem, police said.

Militants from Hamas’s Qassam Brigades and the smaller Islamic Jihad group said they had launched separate strikes.

The only Israeli casualties on Thursday were two people who had minor wounds when a mortar exploded near the Gaza border.

U.N. Secretary-General Ban Ki-moon, who was to brief the Security Council on the crisis later on Thursday, condemned the rocket attacks and urged Israel to show restraint. “Gaza is on a knife edge,” he told reporters.

Israel said it has struck more than 860 targets in an offensive intended to halt persistent rocket fire, which escalated after Israeli forces arrested hundreds of Hamas activists in the West Bank while hunting for the abducted teenagers.

It says Hamas Islamists put innocent Palestinians in harm’s way by placing weaponry and gunmen in residential areas. The movement has widespread support among Palestinians.

Across the Gaza Strip, smoke and rubble marked the aftermath of Israeli attacks in the most serious hostilities between the militants and Israel’s powerful armed forces in two years.

“The Jews say they are fighting Hamas and fighting gunmen while all the bodies we have seen on television are those of women and children,” said Khaled Ali, 45, a Gaza taxi driver.

The wail of air raid sirens has paralyzed business in southern communities and sent hundreds of thousands of people scrambling for shelter in Tel Aviv, the commercial capital where two rockets were shot down on Thursday. But offices and shops remain open and roads are clogged with traffic.

One rocket fell in the West Bank between Jerusalem and Abbas’s administrative center Ramallah. It landed in open ground close to a Palestinian home. Some rockets have landed more than 100 km (60 miles) from Gaza.

Hamas spokesman Sami Abu Zuhri sounded a defiant note, when asked about defense minister Yaalon’s remarks of further action to come. “Our backs are to the wall and we have nothing to lose,” he said. “We are ready to battle until the end.”

Israel’s targets in the Gaza Strip have included militant commanders’ homes, which it described as command and control centers. Palestinian officials put the number of dwellings either destroyed or damaged at more than 120. Local residents said some of the houses did not belong to fighters.

Netanyahu has accused Hamas of committing “a double war crime” by targeting Israeli civilians “while hiding behind Palestinian civilians.”

Owners of some of the targeted homes received telephoned warnings from Israel to get out. In other cases, so-called “knock-on-the-door” missiles, which do not carry explosive warheads, were first fired as a signal to evacuate. Scenes of families fleeing their homes have played out daily.

Israeli leaders, who have popular support for the Gaza offensive, have mobilized some 20,000 army reservists, giving them the means, if they choose, to mount a land offensive in one of the world’s most densely populated territories.

The last time they did that was in early 2009. Ground troops did not cross into the Strip during the last major exchange of rockets and missiles in October 2012.

U.S.-backed Palestinian President Abbas, who is based in the West Bank and entered a power-sharing deal with Hamas in April after years of feuding, has denounced the Israeli offensive.

In telephone calls with U.S. Secretary of State John Kerry and Turkish Prime Minister Tayyip Erdogan, Abbas “stressed the need to achieve a ceasefire immediately,” the official Palestinian news agency WAFA said. 

-Reuters, TAAN