Terrorists in the Gaza Strip fired a rocket at the southern city of Ashkelon on Saturday night, the military said.
The projectile apparently struck an open field. There were no immediate reports of injuries, according to the Magen David Adom ambulance service.
The attack came at roughly 9:30 p.m., setting off sirens in Ashkelon and the industrial zone just south of the city, an area where tens of thousands of people live.
Last Sunday, two rockets were fired at central Israel from the Gaza Strip. The two projectiles struck open areas, causing neither injury nor damage.
The Hamas terror group sent messages to Israel that claimed the rockets were fired accidentally, set off by lightning during a thunderstorm, an explanation that the IDF has apparently accepted.