Among the dead were six women and four children, health officials said, as negotiators try to conclude a deal to end the 15-month war.

Israeli Prime Minister Benjamin Netanyahu said the cease-fire would not begin until Hamas provides the names of the three hostages it was set to release later Sunday in exchange for scores of Palestinian prisoners.

Thousands of Palestinians burst into the streets across Gaza as a ceasefire between Israel and Hamas began on Sunday, some in celebration, others to visit the graves of relatives, while many rushed back to their homes.