Two rockets were fired by Palestinians in Gaza late Wednesday. The projectiles landed in open fields in Sdot Negev, not far from the western Negev town of Netivot.
Moments earlier, Code Red anti-rocket sirens sounded in numerous Gaza frontier towns, including Ashkelon and Netivot.
The IDF assesses that two rockets were fired at Israel from Gaza. Security forces are searching for the impact zones.
Last week, a rocket exploded in the Gan Yavne region, east of Ashdod, shattering four weeks of quiet and setting of air raid sirens in the Ashdod and Lakhish regions.
Apart from a 15-year-old girl who was taken to Barzilai Medical Center in Ashdod suffering from a panic attack, the rocket failed to cause injuries, though emergency responders were still assessing on Tuesday whether the projectile had caused any damages.
Tuesday's rocket was the first mid-range rocket attack since the ceasefire went into effect on August 26 following the month and a half long war with Gaza known as Operation Protective Edge.
An army source later said that the IDF "views Hamas as being responsible for everything that occurs in the territory of Gaza." There was no immediate indication about which terrorist group fired the rocket.
On April 24, terrorists in Gaza fired a rocket at the Sderot area, ending four months of quiet and triggering air raid sirens in the area. The projectile exploded in an open, uninhabited area, the IDF said.