The Palestinian Hamas movement said Monday that it would not end hostilities with Israel without concessions by the Jewish state and that no serious efforts towards a truce had been made.

"Talk of a ceasefire requires real and serious efforts, which we haven't seen so far," Hamas legislative member Mushir al-Masri told AFP in Gaza City.

The Arab League has called on the international community to end Israeli air strikes on Gaza and to protect Palestinians, ahead of a foreign ministers' meeting later Monday.

The call, in a report to be submitted to the ministerial meeting, comes as Israel pressed its campaign of punishing raids on Gaza into a seventh day on Monday, and the Palestinian death toll rose to 172, with another 1,230 wounded.

Foreign Minister Jebran Bassil condemned the Israeli aggression against the Gaza strip, demanding the Arabs to take a “unified” stance to end the Israeli hostility.

“Israel is benefiting from the international silence and the Arab incompetency by continuing and increasing its attack,” Bassil warned.

Saudi Arabia has pledged 200 million riyals ($53.3 million) in humanitarian aid for the victims of the Israeli offensive against Gaza which has killed more than 170 people.

The funds will pay for medicine and medical equipment to treat "victims of the brutal Israeli aggression and bombing of the Gaza Strip," Finance Minister Ibrahim al-Assaf said late Sunday. 

A young man beat up a Moroccan rabbi in the economic capital of Casablanca over Israel's deadly air war on Gaza, a newspaper reported on Sunday.

Tel Quel said on its website that the attack took place on Friday as Moshe Ohayon was walking towards his synagogue.

U.S. Secretary of State John Kerry on Sunday phoned Israeli Prime Minister Benjamin Netanyahu to renew a U.S. offer to help mediate a truce as Israel stepped up its military campaign against the Gaza Strip.

Kerry "highlighted the U.S. concern about escalating tensions on the ground," a senior State Department official said.

Clashes erupted in Paris on Sunday as thousands of people protested against Israel and in support of residents in the Gaza Strip, where a six-day conflict has left 166 Palestinians dead.

Several thousand demonstrators walked calmly through the streets of Paris behind a large banner that read "Total Support for the Struggle of the Palestinian People."

Safety fears have forced the cancellation of Canadian rocker Neil Yong's impending concert in Tel Aviv, the target of repeated rocket fire from Gaza in the past week, organizers said Sunday.

Concert promoter Shuki Weiss announced "with great sorrow" the cancellation of a show scheduled for Tel Aviv's riverside Yarkon Park next Thursday.

In 2012, Mohamed Abu Aisha took part in a U.S. peace camp with Israelis, but now he wonders if some of them are flying the warplanes overhead in Gaza. 

Standing in the Tuffah neighborhood in eastern Gaza City, the 17-year-old stares at the devastation left by an Israeli strike in which 18 people were killed on Saturday night.

France's foreign minister called Sunday for an immediate ceasefire in Israel and the Gaza Strip, where a deadly six-day conflict is escalating in what he said was an "absolutely disastrous" way.

"In Gaza and in Israel, the absolute priority is a ceasefire," Laurent Fabius told reporters in Vienna, where he was gathering with his Western counterparts to discuss Iran's controversial nuclear program in a meeting that was also due to touch on the Gaza offensive.