JERUSALEM (CNN) -- Hours after a Qassam rocket shot into Israel from Gaza killed an Israeli civilian, Israel's prime minister on Sunday warned "all those involved in firing Qassams will be hit.

On Saturday, the Izz al-Din al-Qassam Brigades said it had resumed rocket strikes against Israel after a hiatus of more than a year. Sunday's airstrike, the IDF said, was aimed at preventing the ...