Four people were treated for shock from the attack Monday in Netivot, where a rocket struck a building not far from a wedding celebration, The Jerusalem Post reported Tuesday.
Wedding guests said they heard a deafening explosion and that the rocket alert system failed to sound, officials said. Israeli military officials said they would investigate why the system did not activate.
Another rocket hit in the town of Ofakim, where officials did not report any damage or injuries.
The Eshkol Regional Council also reported a mortar originating from Gaza landed in an open area.