There were no immediate reports of injuries or damage from the rocket, which landed near the town of Gan Yavneh, outside Ashdod, according to an IDF statement.
The projectile — a Grad missile — was located minutes after sirens sounded in the Lachish region and Ashdod.
It was unclear how many rockets were shot at Israel from Gaza. According to the IDF, initial signs pointed to one, though other reports put the nubmer as high as five.
Many residents of southern Israel reported hearing multiple blasts. Read more at Times of Israel.