The strike – an hour after people were told to evacuate the building – came as fighting raged.
Earlier, 10 Palestinians of an extended family, including eight children, were killed by an Israeli strike in Gaza City and a Israeli was killed in a rocket attack near Tel Aviv.
The Israel Defense Forces (IDF) released footage of “the scene in the Ramat Gan neighborhood after a rocket hit the area from Gaza,” saying they “will not let this terror go unanswered.”
In other developments:
• United Nations High Commissioner for Human Rights Michelle Bachelet called for strict respect for international law and called on all parties to take action for de-escalation, while Malaysia and Indonesia called for United Nations Security Council to intervene and stop Israel’s strikes on Gaza
• Egypt pushed both sides to suspend military activities from midnight Friday, with Cairo relying on Hamas, while the United States and others tried to reach an agreement with Israel – but a Egyptian source said Israel had rejected an Egyptian proposal for a one-year truce that militant Hamas leaders in Gaza had accepted
• Amidst the fighting, Palestinians marked the start of the Nakba, or “catastrophe,” an annual Palestinian day of mourning marking the displacement of hundreds of thousands of refugees at the time of Israel’s creation in 1948
• The UN Security Council is also due to meet on Sunday, after US diplomat Hady Amr arrived in the region on Friday as part of Washington’s efforts to defuse the conflict.
• The number of killed increased overnight: 139 people are now dead in Gaza, including 39 children and 22 women, according to Palestinian health officials, and nine – including two children and a soldier – on the Israeli side
• UAE carriers Etihad Airways and flydubai canceled flights to Tel Aviv, joining US and European airlines
• Iranian Foreign Minister canceled visit to Austria after Austrian government flies Israeli flag in Vienna in solidarity
• In London, hundreds of people gathered to demonstrate in solidarity with the Palestinians, with the former Labor leader Jeremy Corbyn among those who should speak
Al Jalaa Tower, which houses foreign media – Al Jazeera and the Associated Press news agency, among others – was hit twice by Israeli bombing around 1:15 p.m.
No deaths have been reported.
PA correspondent in Gaza, Fares Akram, said earlier that the building was the only place in the city where he felt safe, as the Israelis called it a media base.
An IDF spokesperson said: “The building contained civilian media offices, behind which the Hamas terrorist organization is hiding and using as human shields. The Hamas terrorist organization is deliberately placing military targets in the heart of densely populated civilian areas of the Gaza Strip. “
On Saturday night, the IDF said rocket fire from Gaza forced Israeli civilians to move to shelters to protect themselves for the fifth morning in a row, with the towns of Beer Sheva and Ashdod among the casualties. .
Israeli military forces said they carried out strikes against a Hamas military intelligence facility and a number of rocket launching sites in northern Gaza, an enclave controlled by the Palestinian Islamist group.
They later added that they had thwarted a Hamas attempt to launch a drone armed with explosives from Gaza into Israel.
An Israeli airstrike killed eight children and two women from an extended family – the highest number of deaths in a single blow since the resumption of the Israel-Gaza conflict earlier this week.
All 10 died when an airstrike hit a three-story house in a refugee camp in Gaza City, AP said, and a surviving widower told reporters his wife and five children, only one of whom were is known to have survived, had gone there to celebrate. the celebration of Eid al Fitr with relatives.
Soon after, Hamas said it fired several rockets at southern Israel in response.
A total of 15 Palestinians were killed by Israeli shelling overnight, Palestinian doctors said on Saturday.
Palestinian militants fired around 200 rockets at Israeli towns, and the IDF said its planes hit apartments belonging to Hamas militants as well as rocket launch sites.
Ms Bachelet warned that the firing of large numbers of indiscriminate rockets by Palestinian armed groups in densely populated Israeli areas amounted to war crimes – and there were concerns that some attacks by the Israel Defense Forces that targeted “civilian objects” do not meet the conditions required to be considered military objectives under humanitarian law.
She said: “Over the past 10 days, the situation in the Occupied Palestinian Territory and Israel has deteriorated at an alarming rate.
“Rather than seeking to calm tensions, the inflammatory rhetoric from leaders of all stripes seems to seek to stir tensions rather than calm them.
This year, Nakba Day is expected to be particularly tense, as Israelis and Palestinians engage in their worst clashes in years and street unrest escalates in mixed Jewish-Arab neighborhoods across Israel, raising fears of a descent into civil war.
Anti-Israel protests also erupted in the occupied West Bank on Friday, prompting Israeli forces to open fire, killing 11 people.
In addition, pro-Palestinian protests took place at Israel’s borders with neighboring Jordan and Lebanon, while three rockets were reportedly fired at Israel from Syria.
The Israeli-Palestinian hostilities are now in their sixth day and diplomatic efforts to stop the bloodshed are intensifying.
The US Embassy in Jerusalem said Hady Amr’s goal after arriving in Israel was “to reinforce the need to work for lasting calm.”
Besides Egypt, Qatar, Jordan and the United Nations are also important players.
“The talks took a real and serious course on Friday,” a Palestinian official quoted by Reuters news agency said.
“Mediators from Egypt, Qatar and the United Nations are stepping up their contacts with all parties to try to restore calm, but an agreement has not yet been reached.”
Diplomats have already held a number of closed-door sessions since the bombing began on both sides on Monday.
The violence was sparked by tensions in Jerusalem over efforts by Jewish settlers to evict a number of Palestinian families from their homes in an East Jerusalem neighborhood, and by clashes between Israeli police and Palestinians at a revered mosque. from the old town.
On Friday evening, an online video showed young Jewish nationalists firing pistols as they exchanged stone rounds with Palestinians in the disputed Sheikh Jarrah neighborhood.
Israeli shelling of the Gaza Strip continued early Saturday, followed by a volley of rockets from Hamas into Israel.
The exchanges came after the heaviest barrage of Israeli tank and artillery fire, combined with overnight airstrikes, hit the Palestinian enclave.
The IDF said it attacked a network of tunnels used by Hamas. But the assault caused destruction in some towns, killed a family of six in their home and sent thousands to flee their homes.
Houda Ouda said that she and her extended family had run frantically to their home in the city of Beit Hanoun in Gaza, seeking safety as the earth shook in the dark.
“We didn’t even dare to look out the window to find out what was affected,” she said.
The Israel Defense Forces said Hamas and Islamic Jihad, another Palestinian militant group, have fired more than 2,000 rockets from Gaza into Israel since hostilities began – an unprecedented volume of strikes.
More than 400 rockets are said to have failed to reach Gaza, while many more were fired from the sky by Israeli air defense systems. However, some have had an impact.
In central and southern Israel, from the small towns bordering Gaza to the metropolis of Tel Aviv and south of Beer Sheva, Israelis have adapted to howling sirens, radio and television interruptions, and beeps. on their cell phones of red alerts which send them to rush for shelter.
For its part, the IDF said it had hit some 1,000 targets in Gaza, including rocket launching sites, individual commanders and the network of tunnels.