A Qassam fired from northern Gaza apparently exploded in agricultural lands near Ashkelon Thursday evening, this after seven mortar shells were launched from the Hamas-ruled territory earlier in the day.
There were no reports of injury or damage, and officers from the Sderot police station were searching for the rocket's exact landing site.
The 'Color Red' alert system warned of the incoming rocket and was also heard in some of Ashkelon's southern neighborhoods.
"We heard the siren and then a blast. I was certain the rocket landed in our neighborhood," an Ashkelon resident told Ynet, "After a long period of relative calm, it was very frightening."
Defense Minister Ehud Barak on Thursday addressed the Iron Dome rocket interception system. He said that "while we cannot delude ourselves that the threats have been lifted – the system is an accomplishment."
Earlier Thursday, Palestinian sources reported that the Israel Air Force distributed thousands of leaflets in the Seam Line area in the northern and southern Gaza Strip.
According to the report, the flyers warned residents not to approach the border fence.
The Palestinians were required to stay 300 meters (984 feet) away from the fence and were warned that "anyone approaching the fence beyond this distance is taking a risk."
The leaflets were dropped shortly after the first mortar barrage, which began at around 7:45 am.