Over 100 Palestinians have been killed in northern Gaza — where Israel is currently laying a major siege — by Israeli attacks since the start of the weekend. More than 350 patients are believed to be trapped inside the three remaining partially operational hospitals in northern Gaza: the Indonesian, Al-Awda and Kamal Adwan hospitals. Dr. Ayaz Pathan, an emergency medicine physician who recently worked at the Indonesian and Nasser hospitals, describes the conditions he witnessed and responds to Israel’s latest attack on aid workers and four water engineers who were killed. “It was tragic to watch people be in pain, die in pain, die of infections which are completely preventable,” says Pathan.

AMY GOODMAN: “The nightmare in Gaza is intensifying.” Those are the words of a top U.N. official as Israel escalates its war amidst a devastating siege and forced expulsion of Palestinians in northern Gaza. Health officials there say at least 87 people were killed in an Israeli airstrike on Beit Lahia on Saturday. Survivors said the dead include many women and children.

AHMED AL HAJEEN: [translated] We were asleep around 12 a.m. when it suddenly felt like an earthquake hit the area. Debris was falling on us. We rushed outside after hearing screams of women and children and found that our neighbors had been targeted by massive bombs. Tons of explosives had fallen on a residential neighborhood full of civilians and displaced families. All those who were martyred here are children, women and displaced people who fled from other areas due to heavy strikes, seeking shelter in what they believed to be a safer place.

AMY GOODMAN: Today, Al Jazeera reports at least 33 more Palestinians in Gaza were killed by Israeli attacks, including 18 in the Jabaliya refugee camp alone. Palestinians have shared footage on social media that appears to show people in Jabaliya being hit by a strike as they try to rescue an injured person in the street.

Israel is also targeting the last three functioning hospitals in northern Gaza: the Indonesian, Al-Awda and Kamal Adwan hospitals. Doctors Without Borders reports more than 350 patients are believed to be trapped inside the hospitals. This is an urgent video call for help made Sunday by Dr. Marwan Sultan, director of the Indonesian Hospital in northern Gaza.