Three senior Hamas military commanders have been killed in Israeli air strike in the Gaza Strip, the Islamist militant group said.
Hamas named the men as Mohammed Abu Shammala, Raed al-Attar and Mohammed Barhoum and said they were killed in a bombing of a house in the southern town of Rafah.
Hopes of extending the ceasefire in Gaza evaporated within hours of it ending as Hamas fired into Israel who quickly hit back.
Four people including a 10-year-old boy were killed as negotiations to end the violence took place in Egypt.
ITV News International Affairs Editor Rageh Omaar reports:
There have been two days of quiet in Gaza. No rockets or missiles, no more destroyed houses, no more ambulance sirens screaming.
A three-year-old girl has been rescued from Gaza and brought to London for life-saving heart surgery.
A small team of NHS doctors and surgeons is travel to Gaza to set up facilities and establish how best to use specialists and equipment.