Israel closed the Kerem Shalom border crossing with Gaza to the passage of goods after three rockets were fired at southern Israel from the coastal strip.
Another swarm of locusts entered Israel, spurring concerns that they will continue to infest the country for several weeks.
rocket fired from Gaza hit southern Israel for the first time in three months, causing some damage.
The U.N. Security Council will hold a closed emergency meeting on Wednesday night to discuss Israeli strikes against the Gaza Strip as Israel threatened a wider offensive in the Palestinian enclave to stem rocket salvoes by Hamas militants.
Israel and Hamas reportedly were observing an informal ceasefire, brokered by Egypt.
More than 70 rockets and mortar shells fired from Gaza have hit southern Israel in the last 24 hours, striking several homes and injuring three.
An Israeli air strike killed a Palestinian militant and wounded two men in the Gaza Strip on Friday, Israel and Hamas medical officials said, two days after an Egyptian-brokered truce had calmed an outbreak of cross-border violence.
Palestinian Hamas militants announced on Wednesday they were ready to stop the latest round of cross-border violence as long as Israel followed suit, in a statement issued after Israeli air strikes killed two Palestinians in the Gaza Strip in a third day of fighting.
Hamas has launched a barrage of rockets toward southern Israel on Tuesday afternoon, after months of restraint on behalf of the Gaza rulers.
A Kassam rocket fired from Gaza hit southern Israel, ending a two-day lull in rocket fire.
Schools were closed in southern Israel again as rockets fired from the Gaza Strip continued to strike despite a cease-fire.
At least four Kassam rockets fired from Gaza struck southern Israel.
Schools reopened in southern Israeli communities after having been closed for three days due to rocket attacks from the Gaza Strip.
A rocket fired from Gaza landed in Ashkelon was the first since a barrage of rocket fire on southern Israel ended.
Violence between Israel and militant Palestinians rose sharply this week with a bombing in central Jerusalem and a dramatic increase in rocket attacks on southern Israel.
Gaza Strip terrorists launched rockets into Israel.