Israeli airstrikes hit a militant site in Gaza on Saturday for the second time in as many days, the Israeli army said, after Palestinian militants sent incendiary balloons into Israeli farmland and Palestinian protesters threw stones and explosives at soldiers at the separation fence.

There were no reported casualties from the strikes in Gaza. Earlier on Saturday, the Israeli military shot and wounded three Palestinians who were rallying at the separation fence along the Israeli frontier with the crowded enclave. It’s a familiar tactic for Palestinians in Gaza protesting a 16-year blockade imposed by Israel with Egypt’s help. Israel says the blockade is needed to prevent the ruling Hamas militant group from arming itself.