CAIRO — Israeli forces killed at least 67 people in Gaza on Monday with airstrikes that left 30 dead at a seaside cafe and gunfire that left 22 others dead as Palestinians tried to get desperately needed food aid, witnesses, hospital and health officials said.

Meanwhile, the Israeli military said dozens of settlers clashed with Israeli troops outside a military base in the occupied West Bank and set fire to a nearby security installation overnight in the latest violence perpetrated by hard-right Jewish extremists in the territory.

A hard-right protest over the Israeli military’s handling of recent Israeli settler attacks on a Palestinian town devolved into a riot. Extremists attacked security forces with pepper spray and vandalized military vehicles, the military said. At least 11 Israelis have been detained in multiple incidents.

Israeli settler attacks against Palestinians have sharply increased in the West Bank, where 3 million Palestinians and 500,000 Israelis live.

Last Wednesday, at least three Palestinians were killed during a confrontation in Kafr Malik, a town outside Ramallah, according to the Palestinian Health Ministry.

In Gaza, one airstrike Monday hit the Al-Baqa Cafe in Gaza City when it was crowded with women and children, said Ali Abu Ateila, who was inside.

“Without a warning, all of a sudden, a warplane hit the place, shaking it like an earthquake,” he said.

At least 30 people were killed and dozens wounded, said Fares Awad, head of the Health Ministry’s emergency and ambulance service in northern Gaza. Awad said many of the wounded were in critical condition. Two other strikes on a Gaza City street killed 15 people, according to Shifa Hospital, which received the casualties.

The cafe, one of the few businesses to continue operating during the 20-month war, was a gathering spot for residents seeking internet access and a place to charge their phones. Videos circulating on social media showed the wounded being carried away in blankets.

Israeli forces also killed 11 people who had been seeking food in southern Gaza, according to witnesses, hospitals and Gaza’s Health Ministry.

Nasser Hospital in Khan Younis said it received the bodies of people shot while returning from an aid site associated with the Israeli- and U.S.-backed Gaza Humanitarian Fund. It was part of a deadly pattern that has killed more than 500 Palestinians over the past month.

The shootings happened about 2 miles from the GHF site in Khan Younis as Palestinians returned from the site along the only accessible route. Palestinians are often forced to travel long distances to access the GHF hubs in hopes of obtaining aid.

Nasser Hospital said another person was killed near a GHF hub in Rafah.

Ten others were killed at a United Nations aid warehouse in northern Gaza, the Health Ministry’s ambulance and emergency service said.

One witness, Monzer Hisham Ismail said troops attacked the crowds while returning from the GHF hub in Khan Younis: “We were targeted by (the Israeli) artillery.”

Yousef Mahmoud Mokheimar was walking along with dozens of others when he saw troops in vehicles and tanks racing toward them. They fired warning shots in the air before firing at the crowds, he said.

“They fired at us indiscriminately,” he said, adding that he was shot in his leg, and a man was shot while attempting to rescue him.

He said he saw troops detaining six people, including three children, and it wasn’t clear what happened to them.

The Israeli military said it was reviewing information about the attacks. In the past, the military has said it fires warning shots at people who move suspiciously or get too close to troops, including while collecting aid.

Israel wants the GHF to replace a system coordinated by the United Nations and international aid groups. Israel and the United States have accused Hamas of stealing aid and using it to prop up its rule in the enclave. The U.N. denies a systematic diversion of aid.

The Israeli military said it recently took steps to improve organization in the area, including new fencing, new signage and opening additional routes to access aid.

Israel says it only targets militants and blames civilian deaths on Hamas, accusing the militants of hiding among civilians because they operate in populated areas.

The strikes in Gaza City came as the military intensified its bombardment campaign across the city and the nearby Jabaliya refugee camp. On Sunday and Monday, Israel issued widespread evacuation orders for large swaths of northern Gaza.

Palestinians reported massive bombing overnight into Monday morning, describing the fresh attacks as a “scorched earth” campaign that targeted mostly empty buildings and civilian infrastructure above the ground.

“They destroy whatever is left standing … the sound of bombing hasn’t stopped,” said Mohamed Mahdy, a Gaza City resident who fled his damaged house Monday.

Awad with the emergency and ambulance services said most of Gaza City and Jabaliya have become inaccessible, and ambulances are unable to respond to distress calls from people trapped in the rubble.

The Israeli military said it had taken multiple steps to notify civilians of operations to target Hamas’ military command and control centers in northern Gaza.

The New York Times contributed.