A rocket fired from Gaza struck southern Israel.
No injuries were reported in the Sunday evening attack, the Israel Defense Forces spokesman said.
The Code Red warning siren sounded in southern Israeli cities and towns near the border with Gaza at about 9 p.m. prior to the rocket landing in an open area in the Eshkol Regional Council.
It is the first rocket fire from Gaza in about two months.
The attack comes as a reconciliation deal between the Fatah party of Palestinian Authority President Mahmoud Abbas and the terrorist group Hamas which controls the Gaza Strip has progressed.