Israeli aircraft attacked two targets in south Gaza late Sunday night in response to the firing of a Qassam rocket Saturday evening towards the western Negev region.
The army said hits were identified, but there were no reports of casualties.
Residents of Rafah reported hearing loud explosions near the underground smuggling tunnels situated along the Strip's border with Egypt.
"The IDF holds Hamas solely responsible for what goes on in Gaza," the Israeli army said in a statement.
The rocket that was fired from Gaza Saturday evening exploded south of Ashkelon.
The Color Red anti-rocket alert system was activated at several southern communities.
The rocket landed in an open area in the Ashkelon Beach regional council; no injuries or damages were reported in the attack.
The last rocket that hit Israeli territory was fired from the Gaza Strip more than a month ago.
The chairman of a nearby kibbutz told Ynet: "Despite the relative quiet, unfortunately we're used to it (rocket attacks). When we heard the Color Red alert, my daughters and I ran to the secure room and so did all other kibbutz residents."