“Israel Air Force aircraft targeted two terror sites in the Gaza Strip this morning (Sunday, April 28). The targets were a terrorist weapon storage facility and a Hamas training compound in southern Gaza. Direct hits on the targets were confirmed,” the military said in a statement.

“The sites were targeted in response to rocket fire from Gaza directed at civilian communities in southern Israel,” the statement added.

The Israeli authorities also closed on Sunday until further notice the Kerem Shalom goods crossing following, the defence ministry said.

On Saturday, thousands of Israelis had been outside in parks and forests celebrating the Jewish holiday of Lag Baomer with traditional bonfires when the rockets exploded in open areas and caused no injuries, according to AP.

Rocket fire from Gaza has declined since an Egyptian-borkered truce in November ended an eight-day conflict between Israel and militants of Islamist movement Hamas, which rules the territory.

On April 19, two rockets fired from the Gaza Strip hit southern Israel without causing any casualties or damage.

The military said it “will not tolerate any attempt to harm Israeli civilians, and will not allow for a return to the reality before Pillar of Defense where Israeli civilians are threatened. Hamas terror organization is solely responsible for any terror activity emanating from the Gaza Strip.”