Fighter in the Hamas-run Gaza Strip fired a projectile that hit southern Israel overnight, without causing any casualties or damage, police said on Sunday.
"Late last night -- after midnight -- sirens sounded in the Eshkol region," police spokesman Micky Rosenfeld told AFP.
"One rocket landed in an open area, causing no injuries or damage," he added.
There was no immediate claim of responsibility for the attack.
The Gaza-Israel border has been largely quiet since November when an Egyptian-brokered truce ended a deadly eight-day conflict between the Jewish state and members of the Islamist movement Hamas which rules the territory.
But since late February, there have been more than five other cases of rocket fire on Israel, most recently overnight Thursday, including ones claimed by hardline Salafist militants to which Israel has responded with air strikes on Gaza.
Rockets were fired by Palestinians in Gaza at Israel during a visit to the region by US President Barack Obama in March.