Children have been killed in strikes on their houses, while riding in cars with their parents, while playing in the streets, walking to a grocery and even at UN shelters.

Sayed, Mohammed and Raida Abu Aisheh – ages 12, 8 and 7 – were at home with their parents when they were all killed in an Israeli airstrike before dawn Monday. The family had remained in the ground floor apartment of their three-story building, while the rest of the extended clan sought refuge in the basement from heavy bombardment of nearby Hamas installations.

Those in the basement survived. The children's uncle, Saber Abu Aisheh, 49, searched Thursday through the rubble, a heap of cement blocks, mattresses, scorched furniture and smashed TVs.

He said Israel gave no warning, unlike two years earlier when he received repeated calls from the Israeli military, including on his cell phone, that a nearby house was going to get hit and that he should evacuate.

"What's going on is not a war, it's a mass killing," said Abu Aisheh, still wearing the blood-splattered olive-colored sweater he wore the night of the airstrike.

The Israeli military did not comment when asked why the Abu Aisheh house was targeted.

In the Zeitoun neighborhood of Gaza City, medics found four young children next to their dead mothers in a house, according to the Geneva-based International Committee of the Red Cross. "They were too weak to stand up on their own," the statement said.

The Red Cross did not say what happened to the children, but noted that the Israeli army refused rescuers permission to reach the neighborhood for four days. Israel said the delay was caused by fighting.

Medic Mohammed Azayzeh said he retrieved the bodies of a man and his two young sons from central Gaza on Wednesday. One of the boys, a 1-year-old, was cradled in his father's arms.

In the Jebaliya refugee camp, five sisters from the Balousha family, ages 4, 8, 11, 14 and 17, were buried together in white shrouds on December 29. An Israeli airstrike on a mosque, presumably a Hamas target, had destroyed their adjacent house. Only their parents and a baby girl survived.

Israel accuses Hamas of cynically exploiting Gaza's civilians and using them as human shields. The military has released video footage showing militants firing mortars from the rooftops of homes and mosques.

"Israel wants to see no harm to the children of Gaza," said Israeli government spokesman Mark Regev. "On the contrary, we would like to see their children and our children grow up without the fear of violence. Until now, Hamas has deliberately prevented that from becoming reality."

Rocket fire from Gaza has disrupted life in Israeli border communities, and with the latest intensified militant attacks, hundreds of thousands of Israelis are in rocket range. Schools are closed and fearful Israeli children rush into bomb shelters at the sound of air raid sirens.

In the ongoing chaos of Gaza, it's difficult to get exact casualty figures. Since December 27, at least 750 Palestinians have been killed, according to Gaza Health Ministry official Dr. Moawiya Hassanain.

Of those, at least 169 were 17 and younger, according to the Palestinian Center for Human Rights, which posts staffers at hospitals to track casualties. UNICEF said at least 100 children and minors were killed in the first 10 days of fighting.

"We are talking about urban war," said Abdel-Rahman Ghandour, the Jordan-based spokesman for UNICEF in the Middle East and North Africa. "The density of the population is so high, it's bound to hurt children ... This is a unique conflict, where there is nowhere to go."

Successive generations of Gaza children have grown up with violence, part of the accelerating conflict with Israel. In the late 1980s, many threw stones at Israeli soldiers in a revolt against occupation. In the second uprising, starting in 2000, some were recruited by Hamas as suicide bombers.

Sarraj, the psychologist, said he fears for this generation: Having experienced trauma and their parents' helplessness, they may be more vulnerable to recruitment by militants.

In his Gaza City apartment, Sarraj tries to reassure his own children.

His 14-year-old stepdaughter lost her school, the American International School, to a recent airstrike, and a girlfriend was killed in another attack. The family lives in the middle-class Rimal neighborhood and still has enough fuel to run a generator in the evenings, enabling the children to read.

Yet when the bombings start, he can't distract them. "They are scared," he said. "They run to find the safest place, in the hallway, away from the window."

Associated Press writer Karin Laub reported from Ramallah, West Bank.

(Agencies via China Daily January 9, 2009)