Summary UNICEF indicated at least 73 of the victims were under the age of 18.
GAZA CITY, Palestinian Territories (AFP) - Israel said Sunday it would further expand its ground offensive in Gaza as the death toll from its intensive assault soared to 364 ahead of a visit to the region by UN chief Ban Ki-moon.
Diplomatic efforts to seek a truce were set to intensify Sunday with the arrival of Ban in the region to help Israelis and Palestinians "end the violence and find a way forward."
Meanwhile Hamas chief Khaled Meshaal was to meet Palestinian president Mahmud Abbas in Qatar to discuss an Egyptian-proposed truce, and the movement said it had received an invite to Cairo for ceasefire talks.
On day 13 of the bloodiest Gaza conflict in several years, early morning Israeli bombardments killed 14 people, medics said, including the son of a senior Hamas official.
Sunday's deaths raised the total toll to 357 Palestinians.
Seven Israelis have been killed, including two soldiers in a Saturday commando-style raid inside Israeli territory.
Israel said its ground operation was set to "expand" later Sunday.
"This evening, the ground phase of Operation Protective Edge expands, as additional forces join the effort to combat terror" the army said in a statement.
An intensive artillery barrage east of Gaza City before dawn Sunday killed two children, medics said, adding to a high civilian death toll.
The increasing number of children killed in the conflict is causing a growing outcry, with a joint statement from NGOs War Child and Defence for Children International saying more children had been killed than militants.
Figures provided by the UN children's agency, UNICEF, indicate at least 73 of the victims were under the age of 18.
