An Israeli F-16 fired two missiles against a police post near the southern city of Khan Yunis, sparking a fire.
An Israeli helicopter also carried out a raid in a unpopulated area of Beit Lahiya in northern Gaza, but caused no casualties.
"Aircraft intervened against a Hamas position in Hamas near Khan Yunis and another at Beit Lahiya," an Israeli military spokesman confirmed.
The airstrikes are in retaliation for Palestinian rocket attacks that occurred the day before, reports the Associated Press.
Two rockets fired by Palestinian militants struck southern Israel on Sunday, Israel's military said, violating an informal truce even as Israel and Gaza's Hamas rulers appeared to hurry closer to a long-term cease-fire deal two days before Israeli elections....
In separate attacks, Palestinian rockets exploded in the Nir Am communal farm and the southern city of Ashkelon. No injuries were reported, though cars and buildings were damaged, authorities said.
There was no immediate claim of responsibility for either attack.