The Israeli military launched a series of air strikes on Palestinian positions in Gaza on Tuesday.
At least one base belonging to Hamas and four for Islamic Jihad were struck by Israel, Aljazeera reported.
The strikes came after the Israeli army claimed Palestinian fighters were behind a "barrage of projectiles" fired from Gaza into southern Israel.
Military officials said the Iron Dome aerial defense system intercepted some of the 30 rockets and mortar rounds that were fired into Israel.
There were no reports of injuries or damage inside Israel. There was no immediate claim of responsibility.
The incident comes a day after Israeli troops killed a Palestinian who allegedly approached Gaza's border, and two days after Israeli tank fire killed three people in an attack on a military observation post belonging to Islamic Jihad fighters.
An Islamic Jihad leader in Gaza said on Tuesday "as long as there is occupation, resistance is a legitimate right for the Palestinian people."
"Israel keeps up with its aggression, we stick to the two options: popular protests and resistance responding to the Zionist aggression," Khaled al-Batsh told AP.
More than two million Palestinians are packed into the Gaza Strip, a narrow coastal enclave.
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