Israel's military has carried out air strikes in the Gaza Strip in response to Hamas rocket fire just hours before the latest ceasefire was set to expire.
Prime Minister Benjamin Netanyahu says the rocket attack was a grave and direct violation of the ceasefire.
Officials say three rockets landed near the town of Beersheba and two were intercepted near Netivot nearly eight hours before the temporary truce was due to expire. There were no injuries or damage.
Witnesses said Israeli aircraft carried out at least 25 strikes, and hospital officials reported that five Palestinians, two of them children, were wounded.
A five-day ceasefire was extended for 24 hours yesterday while delegations in Cairo from both sides tried to negotiate a deal to end weeks of fighting.
Israel has said repeatedly that it would not negotiate under fire and Mr Netanyahu has now ordered his negotiating team in Egypt to return home.