A rocket fired from Lebanon crashed into northern Israel on Monday night, the army said, without any immediate reports of injuries.
“At least one rocket fired from Lebanon hit the Upper Galilee,” the army said in a statement. The rocket was reported to hit outside a community near the town of Kiryat Shmona.
The IDF said a second rocket was fired, but did not detail an impact site.
Israeli media indicated the rocket hit near the ceasefire line, possibly on the Lebanese side.
Israeli artillery returned fire, toward the source of the launch, the army said.
There was no immediate reaction from UNIFIL, the United Nations force tasked with monitoring the border between Israel and Lebanon.
It was the third consecutive day in which Israel came under rocket fire from the north as well from the Gaza Strip in the south.
Five rockets from Syria hit the Golan Heights early Sunday and the night before a rocket was fired from Lebanon.
There were no casualties in any of those attacks and no Israeli fire in response.
Last month, a rocket fired from Syria prompted Israeli artillery to shell Syrian army positions.
And in June, Israeli warplanes attacked Syrian military headquarters and positions after an Israeli teenager was killed in what the Jewish state said was a cross-border attack by President Bashar Assad’s forces.
Other previous incidents have been put down to stray fire from clashes between Syrian government troops and rebels.