Israeli warplanes attacked two smuggling tunnels along the Gaza Strip border with Egypt on Wednesday, wounding three tunnellers, Palestinian medical sources and the Israeli army said.
An Israeli army spokeswoman said the attack came in response to a rocket fired by Gaza militants into southern Israel late on Tuesday.
It landed in an open field causing no casualties, the army said.
The IDF stressed that the military will continue to respond to any attempt to disrupt the calm in Israel's southern communities.
The Palestinian medical source said one of the three tunnellers was moderately wounded. No Palestinian group claimed responsibility for firing the rocket.
Rocket attacks on Israel have tapered off since a December-January war between Israel and Gaza militants.
Israeli defense officials have credited Islamist Hamas, which controls the coastal enclave, for stopping militants from launching them.
Ynet contributed to this report