The Iron Dome intercepted rockets fired from Gaza over the city of Beersheba on Saturday.
Beersheba Mayor Rubik Danilovitch cancelled school for Sunday due to tensions in the south.
"These are our children and we should act with wisdom," he told Channel 2. "Nothing will happen if they remain at home one more day."
Meanwhile, firefighters in Lachish were battling a field fire sparked by a Gazan rocket.