DEVELOPMENTS

— Republican Sen. Ted Cruz questioned whether President Barack Obama used a federal agency to impose an economic boycott on Israel after the Federal Aviation Administration banned U.S. airline flights to Tel Aviv because of safety concerns. The State Department rejected Cruz’s comments as “ridiculous and offensive.”

— The FAA’s decision prompted complaints from Israeli officials that it amounted to a reward to Hamas for its missile attacks. Former New York Mayor Michael R. Bloomberg flew to Tel Aviv on the Israeli carrier El Al in a show of solidarity.

— Thousands of Israelis lined Jerusalem streets for the funeral procession of Israeli soldier Max Steinberg, a 24-year-old American from Southern California who was killed in the fighting.

News services

The United States announced signs of progress in cease-fire talks Wednesday, but prospects for a quick end to the fighting were dim as Palestinian families fled fierce battles in southern Gaza and the death toll rose to more than 700 Palestinians and 34 Israelis.

Underscoring the challenges facing efforts to end the bloodshed, the leader of Hamas insisted the Islamic militants would not relent until their main demand of lifting an Egyptian-Israeli blockade of the Gaza Strip was met.

On the ground, Israeli troops backed by tanks and aerial drones clashed with Hamas fighters armed with rocket-propelled grenades and assault rifles on the outskirts of Khan Younis, killing at least eight militants, according to a Palestinian health official.

Hundreds of people fled their homes as the battle unfolded, flooding into the streets with what few belongings they could carry, many with children in tow. They said they were seeking shelter in nearby U.N. schools.

“The airplanes and airstrikes are all around us,” said Aziza Msabah, a resident of the city in the southern Gaza Strip. “They are hitting the houses, which are collapsing upon us.”

U.S. Secretary of State John Kerry met with United Nations chief Ban Ki-moon, Israeli Prime Minister Benjamin Netanyahu and Palestinian Authority President Mahmoud Abbas.

“We certainly have made steps forward,” Kerry said in Jerusalem, without elaborating. “There’s still work to be done.”

Israel has insisted it must substantially curb the military capabilities of the Islamic militant group that controls Gaza — a position that appears to have gained support within the U.S. administration — while Hamas has demanded the lifting of a crippling Israeli and Egyptian blockade on the impoverished coastal territory it has ruled since 2007.

Hamas leader Khaled Mashaal said in a televised speech that the opening of the border crossings was a red line.

“When it comes to the balance of power in this crisis between us and Israel, they are the executioners, the aggressors, the occupiers, the settlers, and we are the true owners of the land,” he said from his home-in-exile in Doha, Qatar. “We will not accept anything but the end of the siege.”

The U.S., Israel and the European Union all consider Hamas a terrorist organization, though the U.N. does not. Ban said he and Kerry were lobbying officials in the region to push Hamas and Israel to a cease-fire as soon as possible.

White House deputy national security adviser Tony Blinken said there must be a way forward that does not involve Hamas having the ability to “rain down rockets on Israeli civilians.”

“One of the results, one would hope, of a cease-fire would be some form of demilitarization so that this doesn’t continue, doesn’t repeat itself,” Blinken said in an interview with NPR. “That needs to be the end result.”

The Hamas leader, however, rejected that idea. “Some are talking under the table about disarming the resistance. No one can take away the resistance’s arms,” Mashaal said.