TEL AVIV - Israel's military says it has carried out air strikes in the Gaza Strip in response to fresh rocket fire, hours before a ceasefire was set to expire.
"Terror targets" were hit after three rockets were fired towards the towns of Beersheba and Netivot, officials said.
A five-day ceasefire was extended for 24 hours at midnight while delegations from both sides tried to negotiate a deal to end weeks of fighting.
More than 2,080 people, most of them Palestinians, have died since 8 July.
"This rocket attack was a grave and direct violation of the ceasefire," Mark Regev, a spokesman for Israeli Prime Minister Benjamin Netanyahu, told the Reuters news agency.
There was no immediate claim of responsibility from any of the Palestinian factions in Gaza, which is dominated by the Islamist movement Hamas.