Tens of thousands of Muslims demonstrated Friday across the Middle East in support of the Palestinians and to protest against the Israeli airstrikes pounding the Gaza Strip, underscoring the risk of a wider regional conflict erupting as Israel prepares for a possible ground invasion there.

From Amman, Jordan, to Yemen's capital, Muslims poured out onto the streets after weekly Friday prayers. At Al-Aqsa Mosque in Jerusalem, Israeli police had been permitting only older men, women and children to the sprawling hilltop compound for prayers, trying to prevent the potential for demonstration as tens of thousands attend on a typical Friday.

Palestinians carried belongings through the rubble-strewn streets of Gaza City Friday in search of refuge as Israel's army warned residents to flee immediately before an expected ground offensive in retaliation against Hamas for the deadliest attack in Israeli history.

Hamas fighters broke through the militarized border barrier around the Gaza Strip enclave last Saturday, killing more than 1,300 people in Israel.

Israeli strikes targeted Syria's two main airports on Thursday, Syrian state television said, in the first such attack since a Hamas assault on Israel at the weekend triggered fierce fighting.

"Israeli aggression targets Damascus and Aleppo airports," the state television reported on the messaging app Telegram, without providing additional details.

Iranian Foreign Minister Hossein Amir-Abdollahian will begin Thursday a tour in the region that includes a visit to Lebanon, Iran’s ambassador said.

The ambassador, Mojtaba Amani, said that the visit comes “amid the current developments in Palestine and the crimes that are being committed against Gaza and their dangerous repercussions.”

Germany is offering military help to Israel and promising to crack down on support for the militant Hamas group at home following the group's attack on Israel. Chancellor Olaf Scholz on Thursday underlined Germany's historical responsibility for Israel's security.

The Defense Ministry said it agreed to an Israeli request to use up to two of five Heron TP combat drones that are currently leased by the German military and were already in Israel for the training of German servicepeople. And Defense Minister Boris Pistorius said in Brussels that Israel has requested ammunition for warships, a request that will now be discussed.

Within hours of the horrific attack by Hamas, the U.S. began moving warships and aircraft to the region to be ready to provide Israel with whatever it needs to respond.

A second U.S. carrier strike group departs from Norfolk, Virginia, on Friday. Scores of aircraft are heading to U.S. military bases around the Middle East. And special operations forces are now assisting Israel's military in planning and intelligence.

The Israeli government is under intense public pressure to topple Hamas after its militants stormed through a border fence Saturday and killed hundreds of Israelis in their homes, on the streets and at an outdoor music festival.

In the Gaza Strip, meanwhile, residents are facing ever-growing uncertainty after the territory's only power plant ran out of fuel and shut down Wednesday. Without power, communication is limited and information is scarce.

Israel and Hamas traded more heavy fire Thursday in the Gaza war that has killed thousands as U.S. Secretary of State Antony Blinken visited to stress strong solidarity but also urge restraint to protect Palestinian civilians.

Israel's army has hammered Hamas with thousands of strikes ahead of what is widely expected to be a ground invasion of the crowded territory, after Hamas gunmen killed 1,200 Israelis, mostly civilians, and took about 150 hostages.

Israeli Energy Minister Israel Katz vowed Thursday his country would not allow basic resources or humanitarian aid into Gaza until Hamas released the people it abducted during its surprise weekend onslaught.

"Humanitarian aid to Gaza? No electric switch will be turned on, no water tap will be opened and no fuel truck will enter until the Israeli abductees are returned home," he said in a statement.

Palestinians in Gaza lined up outside bakeries on Thursday after spending the night in pitch darkness surrounded by the ruins of pulverized neighborhoods, as Israel launched new airstrikes and said it was preparing for a possible ground invasion.

International aid groups warned that deaths in Gaza could accelerate as Israel prevents delivery of supplies. The war, which was ignited by a bloody and wide-ranging Hamas attack into Israel, has already claimed at least 2,400 lives on both sides.